GOMIS & LACKER — European Trademark InsightsEU and French trademark law analysis for U.S. in-house counsel and attorneys, from a Paris IP boutique.https://lacker-tm.com/Why a Single Prior Right Anywhere in Europe Can Sink Your Whole EU Trademarkhttps://lacker-tm.com/insights/eu-trademark-unitary-character-risk/https://lacker-tm.com/insights/eu-trademark-unitary-character-risk/The EU trademark unitary character risk US filers miss: one prior right in a single member state can sink your whole EUTM across all 27 countries.Mon, 05 Oct 2026 00:00:00 GMTWhen French Courts Make a Company Director Personally Liable for Trademark Infringementhttps://lacker-tm.com/insights/french-director-personal-liability-trademark/https://lacker-tm.com/insights/french-director-personal-liability-trademark/French director personal liability trademark infringement: how the faute séparable doctrine lets brand owners reach a director's own assets.Mon, 21 Sep 2026 00:00:00 GMTChampagne, Paris, Bordeaux: Why Place Names Fail as EU Trademarkshttps://lacker-tm.com/insights/geographic-trademarks-champagne-paris/https://lacker-tm.com/insights/geographic-trademarks-champagne-paris/Geographical indications barely exist in US law; in Europe they are a wall. Why famous place names can't be monopolized as trademarks in France and the EU — and what to do instead.Mon, 07 Sep 2026 00:00:00 GMTGreen Trademarks: Why ECO, GREEN and POWER Won't Set Your Mark Aparthttps://lacker-tm.com/insights/green-trademarks-eco-green-confusion/https://lacker-tm.com/insights/green-trademarks-eco-green-confusion/ESG branding meets European trademark law: adding ECO, GREEN or NATURE to an existing mark rarely escapes likelihood of confusion at the INPI or EUIPO. A guide for US counsel.Mon, 24 Aug 2026 00:00:00 GMTWhy Your French Opposition Needs Counsel, Not Just a Filing Servicehttps://lacker-tm.com/insights/why-your-eu-opposition-needs-counsel/https://lacker-tm.com/insights/why-your-eu-opposition-needs-counsel/An INPI opposition looks like a form-filling exercise. It is decided like litigation — on deadlines, evidence you can't add later, and an appeal that is annulment-only. A guide for US counsel.Mon, 10 Aug 2026 00:00:00 GMTProof of Use in European Oppositions: What Works, What Failshttps://lacker-tm.com/insights/proof-of-use-eu-trademark-opposition/https://lacker-tm.com/insights/proof-of-use-eu-trademark-opposition/Oppose a French or EU mark older than five years and you can be asked to prove genuine use — or lose. Eight 2025 INPI decisions on what evidence survives, for US counsel.Mon, 27 Jul 2026 00:00:00 GMTDecree 2026-576: France Hides Trademark Applicant Addresseshttps://lacker-tm.com/insights/decree-2026-576-french-trademarks/https://lacker-tm.com/insights/decree-2026-576-french-trademarks/France's Decree No. 2026-576, in force July 2, 2026: hidden individual addresses, a longer opposition timetable, and all-electronic INPI notifications.Fri, 17 Jul 2026 00:00:00 GMTAdding PRO, SERVICES or MAISON Won't Save Your Trademark in Europehttps://lacker-tm.com/insights/adding-generic-words-to-a-trademark/https://lacker-tm.com/insights/adding-generic-words-to-a-trademark/Bolting a generic word onto someone else's mark rarely escapes likelihood of confusion in France or the EU. What INPI and EUIPO opposition decisions show US filers, and how it differs from TTAB practice.Mon, 13 Jul 2026 00:00:00 GMTAI and Trademark Reputation: How ChatGPT Got Famous in 18 Monthshttps://lacker-tm.com/insights/ai-trademarks-reputation-europe/https://lacker-tm.com/insights/ai-trademarks-reputation-europe/Artificial intelligence is compressing the timeline for trademark reputation in Europe — and merging sectors that used to be strangers. Several INPI decisions, read for US counsel.Thu, 02 Jul 2026 00:00:00 GMT