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Intellectual Property

We support our clients across various sectors including media, information technology, healthcare (medical devices, pharmaceutical products), construction and real estate development, communications, engineering (chemistry, mechanics…), and leisure throughout the lifecycle of their intangible assets, from creation to valorization, including legal protection.

 

Areas of practice in intellectual property

Patent law

We provide advice and assistance on matters such as protecting innovations through patent filings, including European patents and unitary effect patents. We support our clients in registration procedures with INPI, EUIPO, and WIPO, and intervene in cases of infringement or litigation.

Design rights

We help protect designs through filing and registration with competent offices. We ensure your creations are secured against counterfeit acts and defend your rights in case of disputes.

Trademark law

We assist in filing and registering French trademarks, European Union trademarks, and international trademarks. We manage oppositions, nullity actions, and protect your trademarks against risks of confusion and counterfeiting.

Copyright

We support our clients in protecting their literary, artistic, and musical works, ensuring compliance with copyright and related rights. We help manage literary and artistic property issues, including publishing, performance, and exploitation contracts. We advise on neighboring rights, protecting the interests of performing artists, phonogram, and videogram producers. We assist in managing royalties and broadcasting rights.

Unfair competition and parasitic practices

We intervene to protect our clients against unfair competition and parasitic practices, defending their intangible assets and know-how. We take necessary actions to stop infringements of your rights and obtain compensation.

Data and databases

We advise on the legal protection of databases, ensuring compliance with the sui generis right of database producers. We help secure your data against unauthorized use and enhance the value of your information assets.

Personality rights

We assist in protecting personality rights, including name rights, image rights, and privacy rights. We intervene in cases of infringement of these rights, particularly regarding defamation or insult.

Media and audiovisual law

We operate in the media and audiovisual sector, advising on production, distribution, and broadcasting contracts. We ensure compliance with the rights of performing artists, producers, and directors.

Business signs, trade names, and domain names

We assist in protecting and managing your business signs, trade names, and domain names, working to prevent cybersquatting and unfair competition risks. We also intervene in disputes to defend your rights.

Trade secrets and business confidentiality

We provide advice on protecting trade secrets and business confidentiality, helping companies implement effective confidentiality measures. We intervene in cases of secrecy violations and take necessary actions to protect your interests.

Examples of support in intellectual property

We have continuously assisted and advised our client on issues relating to protecting their technology (zero-emission hydrogen-based solutions) through patents and know-how (advice on patent filing opportunities, contractual assistance for know-how protection, audit of technical information confidentiality within the company, securing intellectual property rights transfer from commercial partners, audit of employee patent rights transfer, etc.). We also provided our expertise on a case involving multiple patent flows and research, collaboration, or transfer contracts upstream of a US/France technology transfer operation, involving both public and private actors, with funding from the Future Investment Program.

We successfully handled a commercial and know-how dispute in France for our French client against their main competitor, related to the production of a specific product and, particularly, the patented YAG technology necessary for producing high-tech ceramics, lightning, or glass for mobile phones. Their main competitor attempted to take advantage of our client by hiring their former US business development manager in early 2023 to launch a similar case in the United States. Arbitration in the United States (subject to North Carolina law) is ongoing against the former employee, and the competitor is seeking damages and intends to obtain an injunction prohibiting our client’s activity in the United States, based on the violation of their trade and know-how. We are acting as co-counsel in this US litigation with an American law firm.

We assisted our client, an agricultural company, in drafting and negotiating an agreement for industrial-scale testing of patented enzymes to determine manufacturing conditions in facilities and evaluate the product’s market potential both technically and commercially. The patented enzyme preparations are supplied by a Japanese provider.

We advise an American star (music and show business) who is also active through their American champagne and cognac company. In February 2020, this company discovered that the key employee in charge of champagne and cognac procurement in France had set up a secret scheme to benefit from a commission paid by French champagne and cognac suppliers. This commission was secretly added to the price of each bottle supposedly negotiated by said employee and eventually paid by their employer. The misappropriation of funds is currently estimated at 4.5 million dollars.

Support for a Chinese mobile phone manufacturer in preparing potential litigation that could be filed before the Central Division of the Unified Patent Court in Paris to request the invalidation of a European patent held by one of their competitors.

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Deals

SCHUTZ LOGO(packaging systems)
Deals 21 January 2025
Acquisition of a stake in Groupe Duo by SCHÜTZ: Fidal Avocats and De Gaulle Fleurance advise the parties on the transaction.
Deals 25 April 2024
De Gaulle Fleurance advised SunMind, a subsidiary of the VINCI group, on the creation its entity dedicated to decentralized solar energy in France, SunWave

Awards

Best Lawyer-Smaïn Guennad.jpg
Awards
Best Lawyers
Smaïn Guennad recognized in the 2026 edition of Best Lawyers France
Best Lawyer-Charles-Edouard Renault.jpg
Awards
Best Lawyers
Charles-Edouard Renault recognized in the 2026 edition of Best Lawyers France
Best Lawyer-Louis De Gaulle.jpg
Awards
Best Lawyers
Louis de Gaulle recognized in the 2026 edition of Best Lawyers France
Best Lawyer-Serge Lederman.jpg
Awards
Best Lawyers
Serge Lederman recognized in the 2026 edition of Best Lawyers France
Best Lawyer-Charlotte Hébert-Salomon.jpg
Awards
Best Lawyers
Charlotte Hébert-Salomon recognized in the 2026 edition of Best Lawyers France
Awards Patent Law
IAM Patent 1000
De Gaulle Fleurance Ranked Again in IAM Patent 1000 2025 – Patent Litigation, France

Our professionals

Francine
Le Péchon-Joubert
Partner
Serge
Lederman
Partner
Charlotte
Hébert-Salomon
Lawyer - Senior Counsel
Adeline
Planckaert
Lawyer

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    News

    Articles 24 April 2025
    De Gaulle Fleurance Recognized in Le Point – Statista 2025 Ranking of France’s Top Law Firms
    Publications 27 March 2025
    Annual Report 2024 – De Gaulle Fleurance
    Chambers France 2025
    Articles 13 February 2025
    Chambers Global 2025: De Gaulle Fleurance Once Again Recognized
    Articles 5 June 2024
    Updates on the “Influencers” law: analysis by De Gaulle Fleurance