Intellectual Property
Protect your ideas of tomorrow
Lavoix, a firm of intellectual property attorneys and lawyers, can help you protect, promote and defend your innovations and creations, no matter your area of business or the size of your company.
Lavoix operates in all areas related to intellectual property:
A dedicated team of lawyers advises you on all cross-cutting legal aspects of your intellectual property (IP) strategy.
Lavoix advises a wide range of companies and public-sector entities: large companies, SMEs, universities, research centres, and public laboratories and also offers a dedicated programme for start-ups.
Managing IP 2025
Trade mark prosecution – patent & trade mark attorney firms – Tier 2
Trade mark disputes – Other Notable Firms
Décideurs 2025 - Intellectual Property
Patent (general)
Electronic patent Telecoms & New Technologies
Patent Physics, Mechanics and Construction
Trademarks, designs & models
Patent: litigation
Trademarks: litigation
Legal 500 EMEA 2025
« Intellectual Property: Patent & Trademark Attorneys » (Tier 1)
« Intellectual Property: Patents » (Tier 4)
« Intellectual Property: Trade Marks And Designs » (Tier 4)
Featured
Trademark filed to extend an expired patent: bad faith sanctioned
Decision: Cass. com., 7 january. 2026, n° 21-23.458
The French Supreme Court confirms that a trade mark may be invalidated for bad faith where it is filed with the aim of unduly extending the technical protection granted by an expired patent.
The UPC Court of Appeals Overturns Extraterritorial Jurisdiction in the Lawsuit Against OpenAI and Adobe
In an order dated March 13, 2026, the UPC Court of Appeal ruled that the UPC lacks jurisdiction to hear the alleged infringement of patent EP 2 949 070 in Switzerland, Spain, the United Kingdom, Ireland, Norway, and Poland (third countries that are not members of the UPC).
German Patent Office Statistics 2025: Growth in Filings and Improved Court Efficiency
The German Patent and Trade Mark Office (DPMA) recorded a growth in 2025, particularly in the fields of patents and utility models after a decline in the recent years. Patent filings increased to 62,050, representing a rise of 4.7% compared to 2024, while utility model applications saw a strong increase of 19.3% to 11,427 filings. The number of published patent grants also grew moderately, reaching 24,475 (+2.2%).
A European presence
A key IP player in Europe
In order to be ever closer to its customers, Lavoix has gradually expanded its presence in France (Paris, Lyon, Toulouse, Rennes, Lille, Nantes, Nice, and Grenoble) and Europe with offices in Germany (Munich) and Italy (Milan, Bergamo, Reggio Emilia, Macerata) and Switzerland (Lausanne).
In 2023, Lavoix opened a representative office in China (Guangzhou) to develop its activities internationally.
In the rest of the world, our clients also benefit from the strong relationships we have built over the years with our correspondent law firms abroad.