{"id":10941,"date":"2026-08-26T16:23:50","date_gmt":"2026-08-26T16:23:50","guid":{"rendered":"https:\/\/www.dhenne-avocats.fr\/contentieux-des-brevets\/agir-en-contrefacon\/"},"modified":"2026-08-26T16:26:18","modified_gmt":"2026-08-26T16:26:18","slug":"agir-en-contrefacon","status":"publish","type":"page","link":"https:\/\/www.dhenne-avocats.fr\/en\/contentieux-des-brevets\/agir-en-contrefacon\/","title":{"rendered":"Bringing a patent infringement action"},"content":{"rendered":"<p><strong>Qui peut agir, contre qui, dans quel d\u00e9lai.<\/strong> L&rsquo;action en contrefa\u00e7on est ouverte au titulaire du brevet et, dans les conditions de l&rsquo;article L. 615-2 du Code de la propri\u00e9t\u00e9 intellectuelle, au licenci\u00e9 \u2014 exclusif, voire non exclusif si le contrat le permet, apr\u00e8s mise en demeure du titulaire rest\u00e9e infructueuse. Elle vise tout acte d&rsquo;exploitation non autoris\u00e9 au sens des articles L. 613-3 et L. 613-4 CPI : fabrication, offre, mise dans le commerce, utilisation, importation, d\u00e9tention, mais aussi fourniture de moyens. Elle se prescrit par cinq ans \u00e0 compter du jour o\u00f9 le titulaire a connu ou aurait d\u00fb conna\u00eetre le dernier fait qui la fonde (art. L. 615-8 CPI).<\/p>\n<h2>La preuve d&rsquo;abord<\/h2>\n<p>Un proc\u00e8s en contrefa\u00e7on se gagne sur la preuve : la <a href=\"\/en\/fields-of-expertise\/counterfeit-seizure-attorney\/\">actual seizure for infringement<\/a> (art. L. 615-5 CPI) \u2014 outil fran\u00e7ais sans \u00e9quivalent \u2014 permet de faire constater par commissaire de justice, au besoin avec expert, la mat\u00e9rialit\u00e9 de la contrefa\u00e7on jusque dans les locaux du contrefacteur pr\u00e9sum\u00e9. Sa mise en \u0153uvre exige rigueur : requ\u00eate, p\u00e9rim\u00e8tre de la mission, s\u00e9questre, d\u00e9lai pour agir au fond \u00e0 peine de nullit\u00e9. C&rsquo;est une sp\u00e9cialit\u00e9 du cabinet.<\/p>\n<h2>Le choix du forum<\/h2>\n<p>Pour un brevet europ\u00e9en, l&rsquo;action peut relever du Tribunal judiciaire de Paris ou de la <a href=\"\/en\/fields-of-expertise\/jub\/\">Unified Patent Court<\/a>, avec des logiques diff\u00e9rentes : calendrier, langue, port\u00e9e territoriale de l&rsquo;injonction, risque reconventionnel. Ce choix, largement irr\u00e9versible, structure toute la suite : nous le documentons syst\u00e9matiquement avant d&rsquo;assigner.<\/p>\n<h2>La r\u00e9paration<\/h2>\n<p>L&rsquo;article L. 615-7 CPI impose de prendre en consid\u00e9ration les cons\u00e9quences \u00e9conomiques n\u00e9gatives subies, le pr\u00e9judice moral et les b\u00e9n\u00e9fices du contrefacteur \u2014 ou, \u00e0 titre d&rsquo;alternative, une somme forfaitaire sup\u00e9rieure \u00e0 la redevance qui aurait \u00e9t\u00e9 due. La reconstitution du pr\u00e9judice est un chantier \u00e9conomique \u00e0 part enti\u00e8re, que nous menons avec des experts financiers.<\/p>\n<p><strong>Vous suspectez une contrefa\u00e7on de vos brevets ? <a href=\"\/en\/french-patent-litigator-contact-us\/\">Parlons strat\u00e9gie avant d&rsquo;agir<\/a>.<\/strong><\/p>\n<p>See also: <a href=\"\/en\/contentieux-des-brevets\/\">Patent litigation<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Qui peut agir, contre qui, dans quel d\u00e9lai. L&rsquo;action en contrefa\u00e7on est ouverte au titulaire du brevet et, dans les conditions de l&rsquo;article L. 615-2 du Code de la propri\u00e9t\u00e9 intellectuelle, au licenci\u00e9 \u2014 exclusif, voire non exclusif si le contrat le permet, apr\u00e8s mise en demeure du titulaire rest\u00e9e infructueuse. Elle vise tout acte [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":10937,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-10941","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Agir en contrefa\u00e7on de brevet \u2014 Avocats | Dhenne Avocats<\/title>\n<meta name=\"description\" content=\"Action en contrefa\u00e7on de brevet : qualit\u00e9 \u00e0 agir, preuve, saisie-contrefa\u00e7on, choix du forum (TJ Paris ou JUB), dommages-int\u00e9r\u00eats. 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