JULIEN LACKER – FRENCH TRADEMARK ATTORNEY & IP SPECIALIST
ABOUT
Julien LACKER is a Paris-based trademark attorney and certified intellectual property specialist with 20+ years of specialized practice in trademark law. He represents clients before the INPI (French Trademark Office), EUIPO (European Union Intellectual Property Office), and WIPO (World Intellectual Property Organization).
As a member of the Paris Bar, Julien combines strategic legal expertise with pragmatic negotiation skills developed over 10+ years as a trial attorney in an American law firm (Law Offices Kopacz). His approach focuses on securing quick, tangible results through the most efficient means: negotiation, mediation, or litigation—or strategic combinations thereof.
Julien has extensive experience managing trademark disputes across multiple jurisdictions, particularly where French law, EU trademark law, and international enforcement strategies intersect. He serves as trusted counsel for U.S. law firms, multinational corporations, and foreign companies navigating French and European trademark matters.
CREDENTIALS AND SPECIALIZATIONS
CERTIFIED SPECIALIST STATUS
Julien holds two specialized certificates from the French National Bar Council (CNB):
- Certified Specialist in Intellectual Property Law – Patents, trademarks, designs, copyrights, and trade secrets
- Certified Specialist in New Technologies, Computer Law and Communication Law – Digital IP, data protection, and tech regulation
EDUCATION AND TRAINING
- Graduate Degree in Digital Law and New Technologies – University of Paris-Saclay
- Diploma in Legal Studies (Copyright, Electronic Media, Digital Rights) – King’s College London, UK
- Certified Mediator (150 hours) – IFOMENE, Institut Catholique de Paris
- Bilingual English-French training in both French and Anglo-Saxon legal systems
PROFESSIONAL MEMBERSHIPS
- INTA (International Trademark Association)
- APRAM (French Trademark Practitioners Association)
- Paris Bar Association
KEY PRACTICE AREAS
- Trademark Filing and Prosecution – INPI (France), EUIPO (EU), WIPO (International)
- Trademark Oppositions and Cancellation Proceedings – Strategic defense and enforcement
- Trademark Infringement Litigation – French District Courts, appellate courts, and EU courts
- Well-Known Trademark Status Proceedings – Extended protection for dissimilar goods and services
- Domain Name Disputes – Negotiation, litigation, UDRP (WIPO), SYRELI/AFNIC procedures
- Alternative Dispute Resolution – Negotiation, mediation, and out-of-court settlements
RESULTS OBTAINED
FRENCH DISTRICT COURTS AND COURTS OF APPEAL
AS CLAIMANT
- Well-Known Trademark Status + Injunction (Paris District Court, February 3, 2017) – Established well-known status across France and substantial EU member states. Secured injunction with penalty for non-compliance.
- Trademark Infringement Judgment against Amazon (Paris District Court, June 10, 2022) – Conviction for trademark infringement in natural SEO case. Court-ordered publication of judgment on Amazon.fr.
- Restaurant Trademark Infringement (Paris Court of Appeal, January 30, 2015) – EUR 117,000 in damages awarded.
- Substantial Damages Award (Paris Court of Appeal, January 12, 2011) – EUR 435,000 in damages awarded.
- Exequatur of US Judgment – Secured enforcement of U.S. trademark judgment valued at over USD 6,000,000.
AS DEFENDANT
- Full Dismissal of EUR 500,000 in Claims (Paris Court of Appeal, February 21, 2024) – Client faced claims of nearly EUR 500,000 in trademark infringement and damages. Achieved full dismissal based on absence of likelihood of confusion. EUR 50,000 in legal fees awarded to client.
- Cancellation of Opposing Trademarks + Supreme Court Confirmation (Cass. com., April 8, 2008) – Obtained cancellation of two opposing trademarks for lack of distinctiveness. Landmark decision on descriptive domain names. Secured right to use generic term in domain name. Original decision: Paris Court of Appeal, November 15, 2006.
ADMINISTRATIVE AND EUROPEAN PROCEEDINGS
INPI
French Trademark Office
- Well-Known Trademark Status + Extended Protection (INPI, May 20, 2022) – Obtained well-known trademark status with extended protection for dissimilar goods and services.
- Reversal of Similarity Determination (INPI, March 10, 2025 vs. Prior Decision, February 4, 2019) – Successfully overturned prior INPI rejection. Obtained favorable reversal on similarity of signs analysis.
EUIPO
European Union Intellectual Property Office
- Numerous opposition proceedings in English and French before the Opposition Division and Board of Appeal and notably protection of a restaurant trademark corresponding to animal name.
- Filing and defence in cancellation actions before the Cancellation Division and Board of Appeal .
- Participation to mediation before the EUIPO .
EU GENERAL COURT
General Court of the European Union
- Oral pleadings of cases, in English and in French before the TUE.
- Dismissal of trademark revocation action (General Court, December 20, 2023, T-27/23)
- Confirmation of likelihood of confusion with opposing trademark (General Court, January 31, 2024, T-26/23)
WHAT THE COURTS SAY
“The trademark … is known worldwide, including in France and in a substantial part of EU Member States, and enjoys a solid reputation among both the general public and professionals.”
— Paris District Court, Feb. 3, 2017
“The opponent has demonstrated that this trademark, notably due to its intensive use, has acquired significant renown.”
— INPI, May 20, 2022
“The Board of Appeal rightly considered that the documents produced by the intervener, taken as a whole, provided sufficient information as to the extent of use of the contested mark.”
— EUGC, Dec. 20, 2023, T-27/23
WHY WORK WITH JULIEN LACKER
Bilingual Expertise – Fluent English communications and legal filings; native French legal knowledge.
Dual Legal Training – Educated in both French (University of Paris-Saclay) and Anglo-Saxon systems (King’s College London).
Litigation Experience – 20+ years in IP law including 10+ years as trial attorney in American law firm.
Certified Mediator – Often achieves faster, cost-effective resolutions through negotiation and ADR.
International Reach – Represents clients before INPI, EUIPO, WIPO, French courts, and EU courts.
Proven Track Record – Over EUR 1.5 million in damages obtained; multiple appellate and Supreme Court victories.
LANGUAGES
English: Fluent – daily legal practice, oral pleadings before the General Court of the European Union
French: Native
PUBLICATIONS
Julien writes and speaks regularly on intellectual property law topics including EUIPO procedures, French trademark law developments, and cross-border trademark strategy.
Follow Julien LACKER on 