Strategic Legal Solutions For A Global Business World
Strategic Legal Services Tailored for Modern Business — advisory and dispute resolution across intellectual property, media, technology, corporate and regulatory law, delivered by dedicated practice groups from Istanbul for clients around the world.
A Proven Legal Blueprint to Secure What You've Built.
Devin Law & IP is a boutique law firm with over 15 years of combined experience from its founders and partners. The firm operates on principles of transparency, integrity, and shared values, and delivers sustainable legal solutions through dedicated practice groups.
We serve diverse international clients by forming specialized teams with sector expertise. Long-term client relationships, diversity, continuous education and professional development are our core institutional values.
Founded on professionalism, transparency and long-term value creation, the firm combines sector expertise with strategic legal insight — providing clear, practical and result-oriented solutions for businesses and individuals.
Alongside its Istanbul headquarters, the firm manages trademark and patent portfolios across multiple jurisdictions through its attorneyship practice — handling filings, oppositions, renewals and enforcement before TÜRKPATENT, EUIPO and WIPO on behalf of local and international rights holders.
This dual structure — Legal Services on one side and Trademark / Patent Attorneyship Services on the other — allows the firm to combine contentious litigation strength with disciplined portfolio administration, so that every matter is handled by a team specialised in its own field.
02
Why Choose Us
Legal Expertise
Professionals with extensive knowledge across industries provide strategic advice and actionable insights. Every matter is staffed by a team with genuine sector experience, so our advice reflects commercial reality rather than abstract theory.
Client-Focused Approach
Personalized solutions tailored to specific client goals through collaborative engagement. We invest time in understanding each client's business model, risk appetite and priorities before shaping the legal strategy around them.
Innovative Legal Solutions
Leveraging modern legal technologies to develop creative, sustainable approaches. From portfolio automation to structured watch services, we use technology to deliver faster and more consistent outcomes.
Commitment to Sustainability
Supporting clients in adopting ethical practices that benefit both business and society. We help build compliance cultures that are durable, defensible and aligned with evolving international standards.
Strategic Perspective
Aligning legal solutions with business objectives for sustainable growth. Advice is always framed as a business decision — with clear options, realistic costs and measurable consequences.
03
Legal Services Tailored to Your Business
01
Industrial Property Law
Trademarks, patents & utility models and industrial designs — consultancy, prosecution and litigation before TÜRKPATENT, EUIPO and WIPO.
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02
Intellectual Property & Copyright Law
Copyright, software and related rights under FSEK No. 5846 — from ownership architecture and registration through to piracy enforcement.
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03
Media, Entertainment & Advertisement
Where creative expression meets complex regulation — advertising review, broadcasting compliance, production and talent agreements.
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04
Data Protection, Privacy & Cybersecurity
Defensible governance under KVKK and the GDPR — data mapping, cross-border transfers, breach response and defence before the Authority.
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05
IT & Technology Law
Software, SaaS and cloud contracts, gaming and e-sports, startup financing rounds, e-commerce and fintech regulation, and the legal architecture around artificial intelligence.
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06
Corporate Law & Commercial Advisory
Retainer counsel across every department, commercial contracts, general assemblies, board resolutions, capital structures and shareholder disputes.
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07
Dispute Resolution & Litigation
Commercial and contractual litigation, debt recovery and enforcement, labour defence, white-collar crime, shareholder disputes, lease actions, mediation and arbitration.
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08
Maritime, Yachting & Shipyard Law
Superyacht newbuilds and refits, shipyard operations, yacht design and IP, sale and purchase, flagging, chartering and crew, vessel arrests and marine casualties.
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"From the first spark of creativity to the global protection of your brand."
Advertising Board Decisions — Meeting No. 370: Transitional Period in Health Promotion Legislation, Use of Trademarks and Logos, Denigrating Advertising
5 September 2026 — Read →
Media & Advertising
Advertising Board Decisions — Meeting No. 371: Disparaging Advertising, Consistency Between the Principal Claim and Its Exceptions, and the Boundary Between News and Advertising
5 September 2026 — Read →
Data Protection
Turkish Data Protection Board Decisions — August 2026: Principle Decisions, Data Processing for Marketing Purposes and Workplace Surveillance
5 September 2026 — Read →
Competition
Turkish Competition Board Decisions — June–August 2026: Conditional Clearances, the Commitment Procedure and New Investigations
5 September 2026 — Read →
IP Litigation
Trademark Invalidity Actions in Türkiye: Grounds, Acquiescence and the Difference from Administrative Revocation
28 August 2026 — Read →
Maritime & IP
Collision in the Sea of Marmara: Civil and Criminal Liability in Maritime Casualties
15 September 2026 — Read →
Media & Advertising
Advertising Board Decisions — Meeting No. 366: Platform Liability, Trademark Use and Price Transparency
5 September 2026 — Read →
Media & Advertising
Advertising Board Decisions — Meeting No. 367: Right of Withdrawal, Comparative Claims and Health Connotations in Product Names
5 September 2026 — Read →
Media & Advertising
Advertising Board Decisions — Meeting No. 368: Sanctions for Repeated Infringements, Interface Design and Superiority Claims
Advertising Board Decisions — Meeting No. 370: Transitional Period in Health Promotion Legislation, Use of Trademarks and Logos, Denigrating Advertising
5 September 2026 — Read →
Media & Advertising
Advertising Board Decisions — Meeting No. 371: Disparaging Advertising, Consistency Between the Principal Claim and Its Exceptions, and the Boundary Between News and Advertising
5 September 2026 — Read →
Data Protection
Turkish Data Protection Board Decisions — August 2026: Principle Decisions, Data Processing for Marketing Purposes and Workplace Surveillance
5 September 2026 — Read →
Competition
Turkish Competition Board Decisions — June–August 2026: Conditional Clearances, the Commitment Procedure and New Investigations
5 September 2026 — Read →
IP Litigation
Trademark Invalidity Actions in Türkiye: Grounds, Acquiescence and the Difference from Administrative Revocation
28 August 2026 — Read →
Devin Law & IP · Practice Areas
Our Services
Comprehensive legal services combining sector expertise with strategic legal insight: clear, practical and result-oriented solutions for businesses and individuals. Eight dedicated practice groups cover intellectual property, media and advertising, data protection, technology, corporate matters, dispute resolution and maritime law, for multinational groups and early-stage ventures alike.
Comprehensive legal services combining sector expertise with strategic legal insight: clear, practical and result-oriented solutions for businesses and individuals. Eight dedicated practice groups cover intellectual property, media and advertising, data protection, technology, corporate matters, dispute resolution and maritime law, for multinational groups and early-stage ventures alike.
8 practice groups — move across the panels below to preview, click to open.
01Industrial Property Law
01
Industrial Property Law
Trademarks, patents & utility models and industrial designs, consultancy, prosecution and litigation before TÜRKPATENT, EUIPO and WIPO.
Explore →
02Intellectual Property & Copyright Law
02
Intellectual Property & Copyright Law
Copyright, software and related rights under FSEK No. 5846, from ownership architecture and registration through to piracy enforcement.
Explore →
03Media, Entertainment & Advertisement Law
03
Media, Entertainment & Advertisement Law
Where creative expression meets complex regulation, advertising review, broadcasting compliance, production and talent agreements.
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04Data Protection, Privacy & Cybersecurity
04
Data Protection, Privacy & Cybersecurity
Defensible governance under KVKK and the GDPR, data mapping, cross-border transfers, breach response and defence before the Authority.
Explore →
05IT & Technology Law
05
IT & Technology Law
Software, SaaS and cloud contracts, gaming and e-sports, startup financing rounds, e-commerce and fintech regulation, and the legal architecture around artificial intelligence.
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06Corporate Law & Commercial Advisory
06
Corporate Law & Commercial Advisory
Long-term external counsel for modern businesses, contracts, corporate governance and continuous regulatory compliance.
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07Dispute Resolution & Litigation
07
Dispute Resolution & Litigation
Strategic case planning and disciplined procedural management across commercial, administrative and enforcement proceedings.
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08Maritime, Yachting & Shipyard Law
08
Maritime, Yachting & Shipyard Law
Vessel finance, charter parties, cargo claims and marine insurance disputes, advisory across the full lifecycle of maritime operations.
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8 practice groups · hover to preview, click to openLegal Services · Trademark / Patent Attorneyship Services
Devin Law & IP
Our Team
Specialized legal teams handle each matter within their specific field of expertise. Partners, attorneys, specialists and trainees work together across practice groups — combining decades of courtroom experience with modern portfolio management.
Partners & Counsel
Uğurcan Tekin, LL.MPartner / Attorney at Law — Trademark Attorney
Intellectual & Industrial Property, Media Law, IT and Data Protection (KVKK). Legal 500 EMEA 2026 — Next Generation Partner; ranked individually in the WTR 1000 2026, and by IP STARS and Media Law International in both the 2026 and 2025 editions — representing multimedia companies and global brands in high-stakes IP and media litigation.
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Alican Tekin, LL.MPartner — Trademark Attorney
Co-Head of the IP Department — international trademark portfolio management and cross-border projects. Registered trademark attorney advising local and international clients on trademarks, designs and copyright.
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Kadir Karasu, MBAPartner
Intellectual Property, Mergers & Acquisitions and Project Finance. Senior-level advisory on complex, multi-jurisdictional matters, large-scale IP portfolios and advanced financing structures.
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Tevrat TekinCounsel / Attorney at Law
More than forty years of litigation experience — labour law, lease & tenancy, enforcement & bankruptcy and contractual claims before all levels of the Turkish courts.
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Attorneys & Specialists
İnci ÖzçilsalAttorney at Law
Corporate law, contracts, KVKK/GDPR compliance and intellectual property. Legal 500 EMEA 2026 — Key Lawyer; IP STARS 2026 — Rising Star; active in compliance projects, data inventories and trademark prosecution.
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Beyza ErdemirAttorney at Law
IP portfolio management, licensing, designs & patents; KVKK compliance and media law. Legal 500 EMEA 2026 — Key Lawyer. Advises national and international clients and takes an active role in enforcement strategy.
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Şevval Ezgi DemirAttorney at Law
Maritime & shipping law — vessel finance, charter parties, cargo claims and P&I / H&M insurance disputes. Also advises on company formation and commercial agreements across Turkish and foreign legal systems.
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Mehmet Kerem KüçükTrademark & Patent Specialist
Electrical & electronics engineering background — patent drafting, monitoring and evaluation. Combines technical knowledge with legal process across trademark and patent procedures.
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Berkay KizenFinance Specialist
Budget planning, financial analysis and reporting across the firm's operations — bringing an analytical, process-oriented discipline to financial management.
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Legal Trainees
Aleyna KalburcuLegal Trainee
Trademark procedures, KVKK compliance support and general litigation. Studies law on a full scholarship at Istanbul Commerce University.
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Sıla UçarLegal Trainee
Trademark applications, opposition processes and data protection compliance projects. Istanbul University Faculty of Law graduate supporting registration, opposition and defence strategies.
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Devin Law & IP — Istanbul
About Us
From the first spark of creativity to the global protection of your brand — a boutique law firm built on transparency, integrity and shared values, combining Legal Services with Trademark / Patent Attorneyship Services under one roof.
Who We Are
A strong professional culture grounded in transparency, integrity and shared values.
With more than 15 years of combined experience from its founders and solution partners, Devin Law & IP has built a strong professional culture grounded in transparency, integrity, and shared values. The firm concentrates on delivering sustainable legal solutions, forming teams with deep sector-specific expertise, and supporting clients across jurisdictions through a global perspective.
We serve a diverse client base from around the world, operating through dedicated practice groups led by experienced lawyers specializing in distinct areas of law. This structure enables a tailored, strategic approach to complex legal matters while ensuring efficiency and consistency in service delivery.
A strong emphasis is placed on long-term client relationships, supported by a highly qualified and collaborative team. In addition to legal excellence, the firm prioritizes diversity, continuous education and professional awareness — viewing these principles as essential to both institutional growth and responsible legal practice.
By combining experience, specialization and a client-focused mindset, Devin Law & IP positions itself as a trusted legal partner for businesses and individuals navigating today's evolving legal landscape. Alongside its Istanbul headquarters, the firm manages trademark and patent portfolios across multiple jurisdictions through its attorneyship practice — handling filings, oppositions, renewals and enforcement before TÜRKPATENT, EUIPO and WIPO.
Values
Why Choose Us
Legal Expertise
Our team brings a wealth of knowledge and experience across various industries, enabling strategic legal advice and actionable insights that help clients thrive in a competitive landscape.
Client-Focused Approach
We prioritize the unique legal needs and objectives of our clients, delivering personalized solutions tailored to their specific goals and challenges.
Innovative Legal Solutions
We embrace innovation and leverage modern legal technologies to develop creative solutions — staying ahead of industry trends so clients can seize new opportunities and overcome challenges.
Commitment to Sustainability
We are dedicated to helping clients adopt sustainable legal practices that benefit both their businesses and the world around them.
Strategic Perspective
We approach legal matters with a strategic mindset, aligning legal solutions with business objectives to support sustainable growth and informed decision-making.
"Smart approaches to legal solutions with exceptional service."
Articles and commentary from our team on intellectual property, media, data protection and regulatory developments — practical analysis of the decisions, legislation and market practice shaping Turkish and international law.
52 articles · 14 shown
202652 articles
Maritime & IP
Collision in the Sea of Marmara: Civil and Criminal Liability in Maritime Casualties
Taking the ship casualty off Silivri as its point of departure, this article examines the provisions governing collision, the scope of liability in damages, the operation of the criminal investigation, the administrative casualty investigation and the steps that must be taken in the first days following a casualty.
Şevval Ezgi Demir15 September 2026
Media & Advertising
Advertising Board Decisions — Meeting No. 366: Platform Liability, Trademark Use and Price Transparency
A sectoral and thematic review of the decisions published in respect of the Advertising Board's meeting of 12 February 2026 and numbered 366, covering platform liability, price transparency, health and education promotions, and access-blocking decisions against illegal betting advertisements. The note assesses the compliance risks arising from the Board's administrative fines and suspension penalties.
Uğurcan Tekin · İnci Özçilsal · Beyza Erdemir5 September 2026
Media & Advertising
Advertising Board Decisions — Meeting No. 367: Right of Withdrawal, Comparative Claims and Health Connotations in Product Names
A sector-by-sector review of the decisions published in respect of the Advertising Board's meeting of 12 March 2026: e-commerce membership terminations tied to the right of withdrawal, comparative claims by crypto-asset platforms, and a three-month precautionary suspension for advertising continued despite prior sanctions. Compliance risks and administrative fines across the communications, finance, food, cosmetics and tourism sectors are assessed from a legal standpoint.
Uğurcan Tekin · İnci Özçilsal · Beyza Erdemir5 September 2026
Media & Advertising
Advertising Board Decisions — Meeting No. 368: Sanctions for Repeated Infringements, Interface Design and Superiority Claims
The decisions published in respect of the Advertising Board's meeting of 9 April 2026 and numbered 368 signal escalating sanctions: an advertiser that maintained its claims despite earlier penalties received an administrative fine of TRY 39,916,524. This note assesses the compliance risks arising for the communications, e-commerce, cosmetics, healthcare, finance and tourism sectors, from pre-selected payment options to indirect superiority claims.
Uğurcan Tekin · İnci Özçilsal · Beyza Erdemir5 September 2026
At its meeting of 14 May 2026 (No. 369), the Advertising Board imposed administrative fines exceeding TRY 7 million in total on three operators for 5G advertisements published before commercial launch, ruled on the merits in the 'Bank of the Mosts' campaign, and treated pre-selected paid services in online sales as an unfair commercial practice. This note assesses the sanctions across the communications, e-commerce, food, alcoholic beverage and health sectors from a compliance-risk perspective.
Uğurcan Tekin · İnci Özçilsal · Beyza Erdemir5 September 2026
Media & Advertising
Advertising Board Decisions — Meeting No. 370: Transitional Period in Health Promotion Legislation, Use of Trademarks and Logos, Denigrating Advertising
The Advertising Board's meeting of 11 June 2026, numbered 370, addressed the transitional application of the health promotion rules, e-commerce and retail campaign practices, denigrating advertisements and precautionary measures against visa intermediary services. With administrative fines reaching TRY 1,083,706, the decisions underline the need for a sector-by-sector review of advertising compliance.
Uğurcan Tekin · İnci Özçilsal · Beyza Erdemir5 September 2026
Media & Advertising
Advertising Board Decisions — Meeting No. 371: Disparaging Advertising, Consistency Between the Principal Claim and Its Exceptions, and the Boundary Between News and Advertising
At its meeting of 16 July 2026 (No. 371), the Advertising Board imposed a fine exceeding TRY 3.1 million on an operator's advertisement film found to disparage competitors through humour, scrutinised the consistency between spoken claims and subtitle exceptions, and continued to sanction the promotion of attorney-only services under the name of consultancy. This note assesses the decisions sector by sector, with a focus on compliance risks and sanctioning practice.
Uğurcan Tekin · İnci Özçilsal · Beyza Erdemir5 September 2026
Data Protection
Turkish Data Protection Board Decisions — August 2026: Principle Decisions, Data Processing for Marketing Purposes and Workplace Surveillance
A thematic review of the Turkish Personal Data Protection Board's summer 2026 principle decisions and the decision summaries published on 10 August 2026, with a focus on compliance risk: the ban on biometric time tracking, administrative fines for marketing-related data processing, workplace camera surveillance, and data controllers' obligations in handling data subject applications.
Uğurcan Tekin · İnci Özçilsal · Beyza Erdemir5 September 2026
Competition
Turkish Competition Board Decisions — June–August 2026: Conditional Clearances, the Commitment Procedure and New Investigations
An analysis of the Turkish Competition Board's decisions announced between June and August 2026: conditional clearances in the A101–CarrefourSA, Paramount–Warner Bros. Discovery and Cargill–PNS acquisitions, investigations concluded through the commitment and settlement procedures, and cartel fines exceeding TRY 3.6 billion in the automotive tyre sector. The note offers practice-oriented observations on merger notifications, the design of commitment packages and the management of investigation risk.
Uğurcan Tekin · İnci Özçilsal · Beyza Erdemir5 September 2026
IP Litigation
Trademark Invalidity Actions in Türkiye: Grounds, Acquiescence and the Difference from Administrative Revocation
A registered trademark is not always safe. A defect that existed at the moment of registration can lead to the mark being declared invalid by court judgment. The invalidity action is the vehicle for raising that defect. The Industrial Property Code No. 6769 governs the grounds of invalidity, the persons entitled to sue, and the loss of rights through acquiescence. This article examines the invalidity regime and how it differs from the administrative revocation route.
Uğurcan Tekin · İnci Özçilsal28 August 2026
Trademark
Proof of Use in Turkish Trademark Oppositions: The Five-Year Test
Under Article 19/2 of the Turkish Industrial Property Code, an opponent whose trademark has been registered for more than five years must, upon the applicant's request, prove genuine use of that mark in Türkiye. Where proof fails, the opposition fails with it. This article examines how the proof-of-use mechanism works, what counts as genuine use, and how both sides should prepare for it.
Uğurcan Tekin · Alican Tekin28 August 2026
Trademark
Trademark Licence Agreements under Turkish Law: Exclusive and Non-Exclusive Licences Compared
A trademark licence is the principal tool for monetising a mark without parting with it. Yet licence relationships built without regard to the licensing provisions of the Industrial Property Code No. 6769 expose both licensor and licensee to serious risk. This article covers the types of licence, the written-form requirement, recordal with the registry and the licensee's standing to sue.
Uğurcan Tekin · Alican Tekin28 August 2026
Trademark
Bad-Faith Trademark Filings in Türkiye: The True Owner's Toolkit
Those who try to register someone else's mark, a sign learned through a business relationship, or a name known in the market are treated as bad-faith applicants under Turkish trademark law. The Industrial Property Code No. 6769 keeps both the opposition and the invalidity route open against them. This article examines the concept of bad faith, its typical patterns, and the legal tools available to the true owner.
Uğurcan Tekin · İnci Özçilsal28 August 2026
Trademark
Protection of Well-Known Trademarks in Türkiye: When Does Protection Cross Class Boundaries?
Trademark protection is, as a rule, confined to the goods and services covered by the registration. For well-known marks, the Industrial Property Code No. 6769 crosses that boundary through two distinct mechanisms. This article examines the protection of well-known marks within the meaning of the Paris Convention and the beyond-class protection tied to reputation acquired in Türkiye, and sets out the differences between the two.
Uğurcan Tekin · Beyza Erdemir28 August 2026
Trademark/Insights
The Madrid Protocol: Is the Fifth Year Really the End of the Risk?
The Madrid System is usually explained through its economies: one application, one language, one set of fees, protection in up to a hundred and sixteen territories. Those economies are real. The risks that come with them are less often set out with the same precision, and for a Turkish rights holder two of them decide whether the system is the right choice at all.
01
The Basic Mark and What Depends on It
Article 2(1) of the Protocol permits an international application to be based either on an application filed with the Office of a Contracting Party or on a registration in that Office's register. Türkiye is party only to the Protocol, so a pending TÜRKPATENT application is a sufficient basis; a registration is not required. TÜRKPATENT acts as Office of origin and certifies that the particulars of the international application correspond to those of the basic mark.
The ability to file on a pending application is presented as an advantage, and in one narrow sense it is: the international filing date can be secured early. In every other sense it maximises the exposure described below, because the basic mark can still be refused, opposed successfully, or withdrawn.
One filing reaches every designated territory — and one national decision can unwind all of them.
02
Central Attack, and the Part That Survives the Fifth Year
Article 6(2) provides that the international registration becomes independent of the basic mark upon expiry of five years from the date of the international registration. Article 6(3) provides that, before the expiry of those five years, the protection resulting from the international registration may no longer be invoked if the basic application or registration has been withdrawn, has lapsed, has been renounced, or has been the subject of a final decision of rejection, revocation, cancellation or invalidation.
Read alone, Article 6 suggests a clean cut-off. Rule 22 of the Regulations removes it. Where a proceeding capable of producing one of those outcomes has begun within the five-year period but has not become final before the period expires, the Office of origin notifies the International Bureau of that fact, and notifies it again when the proceeding concludes. The consequence is that an invalidity or revocation action commenced in Türkiye on the last day of the fifth year, and finally decided four years later, still brings down the international registration.
“The five-year dependency period is not a limitation period for the risk. It is a limitation period for starting the action that carries the risk.”
For a Turkish proprietor the practical implication is specific. Where the basic mark is one that a competitor has a plausible reason to attack — a mark registered broadly, a mark whose use is thin in several classes, a mark adjacent to an established sign — the international registration should be treated as dependent until the domestic file is genuinely quiet, not until the fifth anniversary appears in the docket.
03
Transformation Preserves the Date and Nothing Else
Article 9quinquies allows the holder of a cancelled international registration to file a national application for the same mark with the Office of any Contracting Party in which the international registration had effect, and to have that application treated as filed on the date of the international registration, with the same priority. Three conditions apply: the application must be filed within three months of the date on which the international registration was cancelled; the goods and services must be covered by the list in the international registration for that Contracting Party; and the application must comply with all requirements of the applicable law, including as to fees.
Transformation is therefore a genuine remedy for the filing date and no remedy at all for the economics. Each designated territory requires a separate national application, at that country's full national fees, through local representation, within three months. A portfolio of twelve designations that collapses in year four is a transformation exercise with a three-month deadline and a cost that will exceed the original Madrid filing several times over.
04
Refusal Periods: Twelve Months, Eighteen Months, and Longer
Under Article 5(2)(a) a designated Office must notify a provisional refusal within twelve months of the notification of the designation. Article 5(2)(b) permits a Contracting Party to declare that the period is replaced by eighteen months, and a large number have done so — among them the European Union, the United States, the United Kingdom, Japan, the Republic of Korea, Switzerland, Canada, Australia, China and Türkiye itself.
Article 5(2)(c) is the provision that should be explained to a client before a filing programme is designed. It permits a Contracting Party which has declared the eighteen-month period to specify that a refusal resulting from an opposition may be notified after that period expires. The correct advice is therefore not that protection is secure after eighteen months, but that no refusal will arrive without a notification and that an opposition-based refusal may arrive later than the headline period suggests.
05
Fees: Where the Cost Estimates Go Wrong
The Schedule of Fees sets the basic fee at 653 Swiss francs for a mark in black and white and 903 francs for a mark in colour, with a complementary fee of 100 francs for each designated Contracting Party that does not charge an individual fee and a supplementary fee of 100 francs for each class beyond three. Cost estimates built on those figures are almost always wrong for a Turkish portfolio, because the markets a Turkish rights holder actually targets have declared individual fees.
The European Union charges 789 francs for the first class, 48 for the second and 144 for each further class. The United States charges 460 francs per class. The United Kingdom, Japan, China, the Republic of Korea, Switzerland, Canada and Australia all charge individual fees of their own. A designation programme covering the European Union and the United States across four classes bears very little relationship to a hundred francs per country. WIPO's fee calculator should be run before any figure is given to a client, because individual fees are revised by separate notifications and several were revised during 2026.
Separately, TÜRKPATENT charges its own transmittal fee as Office of origin. Under the 2026 tariff, item 02.01.19 — notification of an international trademark application to WIPO under the Madrid Protocol — stands at 3,850.00 Turkish lira. Item 02.01.35 sets a reduced figure of 3,350.00 lira for an international application for a mark in Turkish characters, a distinction that is easy to miss. Subsequent designations and other requests are transmitted under item 02.01.20 at 1,630.00 lira, and transformation and replacement under item 02.01.21 at the same figure.
06
The United States Runs Two Calendars
Designating the United States requires a declaration of intention to use the mark on Form MM18, annexed to the international application or subsequent designation, in English and unamended. That is the entry requirement. The maintenance requirement is separate and is the obligation most often missed.
A Section 66(a) extension of protection must be maintained by a declaration of use or excusable non-use, with a specimen, filed between the fifth and sixth years from the United States registration date, again between the ninth and tenth years, and every ten years thereafter. A six-month grace period is available with a surcharge. This declaration does not replace the ten-year renewal of the international registration with WIPO, and the international renewal does not replace it. Two calendars run in parallel on the same right, and failing either one loses the United States designation.
07
When Madrid Is the Wrong Instrument
Where a single market is targeted, direct national or regional filing is usually cheaper and faster. An EU trade mark filed directly with EUIPO costs 850 euros for one class, with 50 euros for the second and 150 for each subsequent class, and the WIPO basic fee and the TÜRKPATENT transmittal fee do not arise at all. As a general orientation, the economic case for Madrid weakens below three target territories.
Two further considerations point the same way. The list of goods and services in the international registration is bounded by the basic mark and can be limited but not extended, so a Turkish basic mark drafted around broad class headings will draw provisional refusals in offices applying a high specificity standard — each requiring a local response with local counsel, and each eroding the saving. And the unitary character of the EU trade mark under Article 1(2) of Regulation (EU) 2017/1001 applies equally to an EU designation made through Madrid: a successful objection in one member state defeats the designation across the Union. Conversion is available, within three months and subject to the limits in Article 139(2), but it is a repair, not a plan.
Reach our team for your intellectual property portfolio, corporate needs or an ongoing dispute. We respond to every enquiry with a clear assessment of scope, timing and next steps — and we build specialized teams around each matter from day one.
Istanbul Office
Let's talk.
Our offices are located in the Ferko Signature building on Büyükdere Caddesi, at the heart of Istanbul's business district. Whether you are protecting a single trademark or restructuring an international portfolio, the first conversation is always with the team that will actually handle your matter.
For trademark and patent attorneyship services, our dedicated prosecution practice also operates through devinpatent.com — covering filings, renewals, oppositions and portfolio administration before TÜRKPATENT, EUIPO and WIPO.
On Büyükdere Caddesi — the spine of Istanbul's central business district — Ferko Signature places the firm minutes from the courts, TÜRKPATENT liaison offices and the headquarters of the companies we serve.
Transform Traditional Law with a Modern Vision — building your career at Devin Law & IP means leading through complex legal challenges and shaping the future of the industry.
Why Devin
Lead through complex legal challenges. Shape the future of the industry.
We invite you to be part of our innovative vision, create impact with strategic solutions, and elevate your professional journey to the highest level. Join us to demonstrate your legal expertise within a modern and dynamic platform.
At Devin Law & IP, junior colleagues work directly with partners on live matters from their first week — trademark oppositions, litigation strategy, KVKK compliance projects and international portfolio work. Mentoring is structured, feedback is continuous, and responsibility grows with demonstrated ability rather than seniority alone.
To apply, send your CV and a short note describing your interest in working with our firm to info@devinlaw.com.tr. Applications are reviewed on a rolling basis and every candidate receives a response.
Lawyers
Attorneys with litigation or IP prosecution experience who want to work on high-stakes, cross-border matters within specialized practice groups.
Internships
Legal internships for law students and graduates — hands-on exposure to trademark procedures, litigation and data protection projects alongside experienced mentors.
Business Services
Finance, administration and operations roles that keep a modern law firm running with precision.
Independent international directories consistently rank our team among the leading practitioners in intellectual property and media law in Türkiye. Our intellectual property and media practice has been recognised by The Legal 500 EMEA, the WTR 1000, Managing IP's IP STARS and Media Law International in both the 2026 and 2025 editions. Click any ranking below for the full details.
2026Current Edition
The rankings published for the current cycle — across intellectual property and media law.
Five Categories · 2026IP STARS — Managing IP
In the IP STARS 2026 rankings published by Managing IP, Devin Law & IP is ranked in five practice categories in Türkiye — with Uğurcan Tekin and İnci Özçilsal recognised among Türkiye's leading IP practitioners as Rising Stars, supported by eleven client testimonials on prosecution, enforcement and opposition work.
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Recommended · 2026WTR 1000
In the 2026 edition, World Trademark Review's WTR 1000 recognises Uğurcan Tekin individually for trademark protection and international IP strategies — identifying the world's leading trademark professionals through extensive research among clients and peers, including his work on global strategies for multinational corporations and proceedings before WIPO.
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Ranked · EMEA 2026The Legal 500 EMEA
Ranked in the Legal 500 EMEA 2026 edition in Intellectual Property and Media & Entertainment. Uğurcan Tekin is listed as a Next Generation Partner, with İnci Özçilsal and Beyza Erdemir recognised as Key Lawyers — supported by directory commentary and client testimonials on the team's patent, advertising and brand protection work.
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Tier 2 · 2026Media Law International
In its 2026 rankings, Media Law International places Devin Law & IP at Tier 2 of the Türkiye country chapter among the leading law firms for media law, with Uğurcan Tekin named among the Top 10 Recommended Media Lawyers in Turkey — reflecting expertise in digital media regulation, content management and broadcasting standards.
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2025Previous Edition
Recognitions earned in the preceding ranking cycle by the same intellectual property and media practice.
Ranked · EMEA 2025The Legal 500 EMEA
Ranked in the Legal 500 EMEA 2025 edition in Intellectual Property and Media & Entertainment, with Uğurcan Tekin as practice head. The editorial assessment highlighted advisory work for the full spectrum of media stakeholders — from multinational media companies to individual actors, directors and agents — and the team's depth in digital media, online content and data privacy.
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Ranked · 2025Media Law International
In its 2025 assessments, Media Law International recognised the practice as one of Türkiye's leading media law firms, with Uğurcan Tekin selected among the ten recommended media law practitioners in Türkiye.
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Recommended Firm · 2025IP STARS — Managing IP
In the IP STARS rankings published in 2025 by Managing IP, the practice was listed among the recommended firms in Türkiye — international recognition of the breadth of experience and strategic approach the team brings to intellectual property work.
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Recommended Firm · 2025WTR 1000
In the 2025 edition, World Trademark Review's WTR 1000 listed the practice among the recommended trademark firms in the Türkiye ranking — reflecting the team's work on filing strategy, portfolio management and contentious trademark matters for domestic and international clients.