Stanislas Roux-Vaillard

Stanislas Roux-Vaillard


Email stanislas.roux-vaillard@​

Phone +33 1 53 67 18 87

Fax +33 1 53 67 47 48

LanguagesEnglish, French, German

Practice groupIntellectual Property, Media, and Technology

Feted as the 'most talented lawyer of his generation in France'

Managing Intellectual Property 2015

As the partner in charge of patent litigation in the Hogan Lovells Paris office, Stanislas Roux-Vaillard is mainly involved in national and multi-jurisdictional patent litigations, mediations and arbitrations, representing international clients, notably in the field of life sciences, telecommunications and chemistry. Stan brings insight to clients willing to take advantage of French patent law. Admitted to the Paris Bar, he represents clients by advocating in IP French courts, on first instance and on appeal.

With a network of talented patent litigators worldwide, Stan also takes part in the conception and execution of the multijurisdictional strategies of clients, along the specifics of their industry and business model. He is involved in a number of pharma and biotech cases helping clients make the most of their patent exclusivity. He represents clients in the telecom industry in contractual defences to standard essential patents and in non-essential patent claims brought by non-practicing entities.

In specific chemistry and mechanical engineering cases, his ability to use evidence gathering tools such as the saisie-contrefaçon helped clients gain leverage for early settlement of infringement situations. Stan is also involved in patent portfolio and know-how review and licensing, notably in corporate deals where IP valuation is key. He regularly writes articles on intellectual property developments in France. Stan is the author of the 'France' chapter of The Intellectual Property Law Review, Law Business Research Ltd and is a research partner of the ABA Section of International Law.

Awards and recognitions


Healthcare and life sciences (France), Recommended
Legal 500 EMEA


Intellectual Property: Patents, Next Generation
Legal 500 EMEA


Intellectual Property (France)
Chambers Global


Recommended as a Global Leader in Life Sciences - Patent Litigation
Who's Who Legal


Recommended as a Global Leader in Patents
Who's Who Legal


Recommended as a National Leader in Life Sciences
Who's Who Legal


Recommended as a National Leader in Patents
Who's Who Legal

Education and admissions


Doctorat, Université Paris II Panthéon-Assas, 2001

LL.M., John Marshall Law School - Chicago, 2000


International Association for the Protection of Intellectual Property ("AIPPI")

Association des Praticiens Européens des Brevets ("APEB")

European Patent Lawyers Association ("EPLAW")

Association Française des Praticiens du Droit des Marques et des Modèles ("APRAM")

Bar admissions and qualifications


Representative experience

Represented a French pharma company in defending a €1.5m claim initiated by a competitor post preliminary injunction proceedings.

Assisted and represented a Taiwanese smartphone manufacturer in defending its freedom to operate against essential/non-essential patent infringement claims brought by a competitor.

Assisted U.S. biotech specialized in testing of genetic diseases in animals, in getting royalties from a French laboratory claiming prior use rights.

Assisting a chemical company in a mediation to settle an ownership dispute regarding results of a co-development project on microwave activation of HDPE.

Assisted and represented a U.S. pharma company in defending its patent over a stereo selective process and recovered half a million euros in lawyer's fees.

Assisting and representing a car mapping/designing software leader in the misappropriation of its know-how by the seller of a morphing and mapping technology.

Assisting a French energy leader in acquiring a 6000+ patents portfolio as part of the acquisition of a nuclear power leader in a €2.7bn deal.

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