is attorney since 2005 and partner of the firm since 2015. He advises clients in patent infringement litigation, technology-related arbitrations, and licensing matters. He specializes in national and cross-border patent litigation. Kai has comprehensive litigation experience, in particular in the areas of standard-related patents, electronics, medical technology, chemistry and life sciences. He also has broad experience advising international clients on strategies relating to enforcement of IP rights in Europe.
Kai passed his two German legal state exams in 2002 and 2004 in Augsburg and Munich. Afterwards, he studied at the Boston University and obtained his LL.M. in Intellectual Property in 2005. Kai's Ph.D. work explored the validity of restrictions in software contracts under German and U.S. patent and copyright law.
Kai publishes regularly and lectures on current issues of patent and procedural law. He is inter alia co-author of the widely acclaimed "Cepl/Voß, Prozesskommentar zum Gewerblichen Rechtsschutz" (commentary on German procedural law in IP), 2nd edition published in 2018.
Kai is recommended in Chambers Global 2016, 2017, 2018 and 2019 "Germany – Intellectual Property" as "Foreign Expert for USA". Managing IP describes him in Patent Editorial 2018 as "brilliant litigator whose solutions are all very well-considered". According to JUVE, Kai is "technically competent and success-oriented" (Patent Litigation 2018). He is also named as being among the world’s leading patents lawyers (Who’s Who Legal: Patents 2019). Furthermore, he appears in the 2019 edition of IAM Strategy 300 among “The World’s Leading IP Strategists”.
Prior to joining Vossius & Partner, Kai was a member of the patent litigation team at an international law firm in Düsseldorf.