Raphaëlle Dequiré-Portier has been advising and assisting clients in disputes with regard to patents and trademark law, her practice’s primary focus, since 2001. In addition, she advises on copyright issues and unfair competition law for some of the world's leading brands, particularly in the luxury, jeanswear and consumer goods sectors.

Over the years, she has gained significant experience in domestic and pan-European patent litigation (patent infringements and validity disputes), more specifically in Life Sciences (drugs cases, particularly with regard to supplementary protection certificates, as well as medical devices), on technologies and mechanics.

Raphaëlle is a member of several professional associations: the APRAM (French Association for Trademarks and Models Lawyers), the INTA (International Trademark Association) and the AIPPI (International Association for the Protection of Intellectual Property).

Raphaëlle Dequiré-Portier is the 2015, 2017 and 2018 Client Choice winner in the category Intellectual Property Patent for France.

She is also regularly listed in international legal guides:

« Raphaëlle Dequiré-Portier mostly handles patent-related matters, both contentious and non-contentious. She is highly experienced in patent infringement, invalidation and SPC matters, and often advises pharmaceutical and telecoms companies.»
Chambers Europe & Global 2024 - Intellectual Property: Patents

« The team is led by Raphaëlle Dequiré-Portier, known for her experience handling patent litigation for the life sciences sector, alongside Emmanuel Larere and Jean-Hyacinthe de Mitry, who handle contentious and transactional matters. »
Legal 500 EMEA 2023 - Intellectual Property : Patents

« Practice co-head Raphaëlle Dequiré-Portier has a wealth of experience handling both domestic and pan-European patent disputes, and Jean-Hyacinthe de Mitry specialises in unfair competition and protection of trade secrets. »
Legal 500 EMEA 2023 - Industry Focus : Healthcare & Life Sciences

« Raphaëlle Dequiré-Portier mostly handles patent-related matters, both contentious and non-contentious. She is highly experienced in patent infringement, invalidation and SPC matters, and often advises pharmaceutical and telecoms companies. »
Chambers Europe & Global 2023 - Intellectual Property: Patents

« [...] L’équipe s’est récemment distinguée en obtenant la reconnaissance et l'extension de plusieurs brevets de ses clients. Elle gère régulièrement des actions en contrefaçon et en nullité. Raphaëlle Dequiré-Portier est recommandée pour ces aspects. »
Legal 500 Paris 2022 - Santé et Sciences de la vie

« Emmanuel Larere et Raphaëlle Dequiré-Portier sont tous les deux très bien informés, créatifs et serviables. »
Legal 500 Paris 2022 - Propriété intellectuelle : Brevets

« Emmanuel Larere et Raphaëlle Dequiré-Portier sont tous les deux très bien informés, créatifs et serviables. »
Legal 500 Paris 2022 - Propriété intellectuelle : Brevets

« Le cabinet excelle dans la gestion du contentieux, comme en témoigne le large volant d’affaires traité par les cinq associés responsables de la pratique : Jean-Hyacinthe de Mitry, Arnaud Michel, Emmanuel Larere et Raphaëlle Dequiré-Portier – qui tous [...] interviennent aussi de manière significative en conseil. »
Legal 500 Paris 2022 - Propriété intellectuelle : Brevets

« Emmanuel Larere and Raphaelle Dequiré-Portier are exceptional advocates. Very knowledgeable and professional, and creative when proposing new strategies. [...] »
Legal 500 EMEA 2022 - Intellectual Property: Patents

« Co-head of the practice Raphaëlle Dequiré-Portier focuses principally on patent and trademark disputes in the life sciences sector. »
Legal 500 EMEA 2022 - Industry focus: Healthcare & Life Sciences

« Raphaëlle Dequiré-Portier climbs the rankings on the back of positive market feedback. She mostly handles patent-related matters, both contentious and non-contentious. »
Chambers Europe & Global 2022 - Intellectual Property: Patents, France

« The practice demonstrates particular strength in contentious work, as reflected in the track records of practice heads Grégoire Triet, Jean-Hyacinthe de Mitry, Arnaud Michel, Emmanuel Larere and Raphaëlle Dequiré-Portier; the latter four, however, also manage a substantial transactional caseload. »
Legal 500 EMEA 2021

« Highlights in the last year have included the granting and extension of patents, in addition to infringement and nullity actions; Raphaëlle Dequiré-Portier is the name to note for this work. »
Legal 500 EMEA 2021 | Industry focus : Healthcare and Life Sciences

« Raphaëlle Dequiré-Portier is experienced advising on patent appeals and patent infringement cases. She is also well placed defending clients in patent invalidation proceedings. »
​Chambers Europe & Global 2021