Back to rankings

Lavoix

France

1

Intellectual property: Patent and trade mark attorneys

We are only able to display limited information for this firm. We display more complete information for all of the following firms:

Plasseraud IP
Plasseraud IP
Lavoix, a major European IP firm with integrated patent, trademark attorneys and attorneys-at-law, excels in high-volume prosecution and UPC litigation. Philippe Blot drives electronics and mechanics strategy, while Bertrand Domenego heads physics and materials. Béatrice Holtz oversees life sciences and biotech. Gwenaël Toussaint leads trademarks and designs and Céline Bourneuf handles opposition and appeal proceedings and conducts freedom to operate studies. The firm’s multi-jurisdictional presence strengthens cross-border filings. \n \n 
Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘Adaptability, responsiveness, transparency, attentiveness to client needs and requirements, a dedicated and experienced team, and excellent administrative management of files. The LAVOIX firm is clearly superior to others in the quality of its service, its administrative management, and its adaptability. The LAVOIX firm regularly develops IT tools that facilitate the monitoring of files, costs, and deadlines.’
  • ‘This team's strengths are its responsiveness and proactivity. This team also demonstrates innovation in its collaborative methods.’

Key clients

  • INSERM / Généthon / Spark Therapeutics / Sorbonne Université / Université Paris Cité
  • ARCELORMITTAL

Work highlights

Acting for INSERM, Généthon, Spark Therapeutics, Sorbonne Université and Université Paris Cité in opposition to Bayer et al.’s EP3768304 on IdeS-enabled gene therapy, alongside Généthon’s Crigler–Najjar clinical trial and April 2025 oral proceedings with D Young & Co.