Member Profile

Nathalie Dreyfus is the founder and managing partner of Dreyfus & associés, a Paris IP boutique she established in 2004. A French and European Trademark Attorney, she is one of the few IP practitioners in France to hold court expert status at the highest level: she is a court-approved expert before the French Supreme Court (Cour de cassation) for trademarks, and before the Paris Court of Appeal for trademarks and designs. She is also an accredited panelist of the WIPO Arbitration and Mediation Center (Geneva) and the Forum (USA), and lectures at the French National School for the Judiciary (ENM). Clients rely on her to turn intellectual property into a strategic business asset: she identifies opportunities and risks in complex IP negotiations and transactions, secures portfolios worldwide and defends brands against online threats. In 2026 she was named Trademark Law Expert of the Year for France at the Advisory Excellence Awards.

Dreyfus & associés advises startups, SMEs, mid-caps and international groups on every stage of the life of their intangible assets: creation, clearance, filing, portfolio management, valuation, licensing and enforcement. The firm covers trademarks, designs, copyright, patents, geographical indications and appellations of origin, plant varieties, domain names, software, IP contracts and franchise. It has a recognised digital practice covering cybersquatting, phishing, social media, online marketplaces, NFTs and Web 3.0, data protection and compliance. The firm handles pre-litigation and litigation matters, counterfeiting and unfair competition, UDRP, URS and SYRELI domain name disputes, and conducts certified IP valuations. Clients benefit from Dreyfus IPweb, the firm's secure online platform giving real-time access to their portfolio, and from AI-assisted trademark similarity analysis.

Extensive French, EU and international practice, with filings and enforcement worldwide through a long-established network of specialist IP correspondents. The firm acts as the French and EU partner of IP firms and companies from China, India, Canada, the United Kingdom, Switzerland, Poland and Turkey, and works daily with correspondents in the United States, Brazil, Portugal and Hong Kong. Working languages: French and English

Trademark and design prosecution and portfolio strategy in France, the EU and internationally; oppositions and cancellation actions before INPI and EUIPO; domain name recovery (UDRP, URS, SYRELI); online brand protection and marketplace takedowns; IP licensing, assignment and coexistence agreements; court-appointed expertise and IP valuation; wine law and plant variety rights. [à compléter : 2 ou 3 dossiers emblématiques anonymisés si souhaité]

Leading French and international companies in luxury and fashion, wine and spirits, technology and digital services, agri-food and plant breeding, as well as innovative startups and SMEs.

Trademark Attorney; court-approved expert before the Cour de cassation (trademarks) and the Paris Court of Appeal (trademarks, designs); accredited panelist, WIPO Arbitration and Mediation Center and the Forum; also listed with CIIDRC, ADNDRC, MFSD and CEPANI; IP expert approved by INPI and Bpifrance.

Author of several books and of numerous articles in specialist IP/IT journals. Editor-in-chief of the Dreyfus IP blog (www.dreyfus.fr/blog), covering trademark, patent, copyright, Internet and new technology law.

Regular speaker at international IP events including INTA, AIPPI, APAA and IBA (fashion and luxury law). Lecturer at the French National School for the Judiciary (ENM). Panelist at NDD Camp Paris 2026 on cybersquatting, alongside WIPO and leading French IP practitioners.

INTA, AIPPI, ECTA, MARQUES, PTMG, APRAM, AIDV (International Wine Law Association), AFDIT, Cyberlex, CNCEJ (French National Council of Court Experts), CEIPI alumni, ICANN, EACC.

Trademark Law Expert of the Year, France, Advisory Excellence Awards 2026. The firm is ranked or awarded by World Trademark Review (WTR 1000), The Legal 500, Managing IP IP STARS, Who's Who Legal, GPG Trade Marks & Copyright 2026, Leaders in Law Global Awards, Corporate INTL Global Awards and Décideurs Magazine, and is certified Best Companies to Work For.