Marta Mendes


Marta’s expertise in intellectual property is dedicated to patent and trade secret litigation. Marta handles cases of infringement and invalidity in the fields of medical devices, chemistry, domestic appliances, cosmetic, mechanics, video games, telecommunications. She also handles cases with respect to compensation for employee inventions.

In the past years, she has been ensuring for biopharma companies full coordination of different litigations spreading over an increasing number of European countries together with EPO proceedings.

Attorney-at-law since 2007, Marta Mendes first worked for a niche firm in industrial property law then in the IP/TMT department of an international firm.

She joined the team in January 2011 and became a partner in 2021.

    • Acting for a leader in the video game industry to enforce three of its patents covering various features of video game controllers enhancing the user’s gaming experience.
    • Acting for a truck manufacturer in a litigation over patents relating to fuel saving features.
    • Representing a leading orthopaedic medical devices manufacturer in a litigation over trade secrets.
    • Represented a leading player in the gaming industry in an infringement suit relating to a console accessory.
    • Coordinating of cross-border litigation for a veterinary health company specialized in pharmaceutical products and vaccines.
    • Representing the holder of a patent relating to high-strength steel safety nets in infringement proceedings.
    • Association Française pour la protection de la propriété intellectuelle (AFPPI)
    • Association Internationale pour la Protection de la Propriété Intellectuelle (AIPPI)
    • Licensing Executives Society France (LES France)
    • Association des Praticiens Européens des Brevets (APEB)
    • Comment decision Biogaran v. Laboratoires Negma, Laboratoire Medidom, CA Paris, 31 January 2014 (
    • Comment decision HTC v. Nokia: TGI Paris, 29 November 2013 (
    • “A patent held in a binding ruling to have been infringed is subsequently revoked: restitution of the damages is denied.“ IIC № 4/2012
    • “Condamnation pour contrefaçon d’un brevet d’invention : conséquences de l’annulation postérieure du brevet” Semaine juridique, édition entreprises et affaires, № 18 du 3 mai 2012
    • “Pay back”, Intellectual Property Magazine, May 2012, page 89
    • “A patent held in a binding ruling to have been infringed is subsequently revoked: restitution of the damages is denied.” IIC № 4/2012
    • Lectures in the professional master degree of intellectual property law (Lyon II / Lyon III) since 2012, in particular with respect to litigation on employee inventions
    • Presentation at the seminar AIPPI “France meets Italy in IP : a story of food and fashion” of 31 January and 1st February 2019 on the subject of “trade secrets / protection of recipes
    • Speech at the “Europe / Japan Mock Trial” conference, EPLAW, on 23 September 2016
    • “Good coordinator” – Competitor JUVE Patent 2024
    • “Marta provides very skillful and efficient advice in litigation proceedings. She kept to a strict timeline and secured a win in her clients’ favour.” IAM Patent 2023
    • “Benoît and Marta collaborate well and are pleasant to work with. Both are efficient, and their skills and professionalism have been on a very high level.” IAM Patent 2023
    • One to Watch – JUVE Patent 2023
    • Next Generation Partner – Legal 500 2021, 2022 and 2023
    • “We are working with her on a number of projects. Very happy with her work.”- Client “She is an excellent litigator” – Competitor JUVE Patent 2023
    • Rising Star – Managing IP 2021 and 2022

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Visiting address:

33 rue Vivienne
75002 Paris

Postal address:

33 rue Vivienne
75002 Paris

The facts


French, English, Portuguese


Master II de recherche en droit de l’Union Européenne (research in European Union law) (Paris II Panthéon-Assas University)

DESS de propriété industrielle (industrial property) (Paris II Panthéon-Assas University)