JUVE Patent

Léon advises and represents clients in all areas of intellectual property law, in particular patent law. He is an experienced litigator and appears regularly before the Unified Patent Court (UPC), where he worked on cases  concerning aluminum anodization, mRNA delivery, and video streaming, among other technologies. Léon was involved in the first UPC decisions on long-arm jurisdiction and developed a specific expertise on private international law and other procedural aspects of the UPC.

In copyright and trade mark matters, Léon’s practice focuses on the fashion and luxury goods industries. He litigates before Dutch and European Union courts, as well as the Benelux and European Union Intellectual Property Offices. His dual soft-IP/patent practice makes him an all-round litigator with a big picture view of the case and an eye for detail.. . He was recognized again as a Rising Star in the 2025 IP Stars rankings.

Léon obtained his PhD degree from the European University Insitute in Florence and is assistant professor at the University of Amsterdam’s Institute for Information Law (IVIR). He is the author of The Proportionality Test in European Patent Law (Hart 2023), the only English-language monograph on the entitlement to permanent injunctions before European patent courts. Léon has published in top-tier journals such as GRUR International, IIC, and Common Market Law Review and is on the editorial board of Intellectuele Eigendom en Reclamerecht (IER), a leading Dutch IP publication. His work was cited by the advocate-general to the Dutch Supreme Court and was recognized with prizes in national and international competitions.