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
The Court of Appeal of the Unified Patent Court defines the standards to assess “added matter”
In decision UPC_CoA_774/2024, dated October 2, 2025, the Court of Appeal of the UPC held that the same standard applies to assess “added matter” in granted claims of a patent whether in view of the application as filed, or in view of each parent application from which the patent derives, when the patent is issued from a divisional application.
Unified Patent Court: the recognition of the French “saisie-contrefaçon” mechanism at the European level
The “saisie-contrefaçon” is a long-standing evidentiary measure familiar to French intellectual property practitioners. It has been successfully incorporated into the framework governing the Unified Patent Court (“UPC”), which has been in force for two years. The main points to remember are presented below.
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.