Peter-Michael Weisse, LL.M., Partner

Peter-Michael primarily focuses on patent law, but also advises and represents national and international companies in the areas of trademark (he represented the plaintiff in ECJ "Thomson Life"), unfair competition and utility model law. He mostly handles patent infringement cases before national courts throughout Germany, often with parallel proceedings around the world. He has particular experience with standard essential patents and handled prominent cases which led to some of the first German judgements post Huawei v ZTE/ECJ, including connected cars. He and his team obtained the 1st German AASI against a Chinese ASI.

He is regularly involved in opposition and nullity proceedings before the European Patent Office and national patent courts. Since 1996, he has handled a remarkable number of complex patent infringement proceedings in the areas of telecommunications (inter alia LTE, UMTS, GSM/GPRS, AMR-WB, EVS, WiFi and Bluetooth standards), electronics, mechanical engineering, medical devices, biotechnology, chemicals and pharmaceuticals, automotive.

He handled many prominent proceedings and legal disputes that led to landmark decisions by the German Federal Supreme Court, e.g. regarding standard essential patents and indirect patent infringement.

What others say

JUVE German Commercial Law Firms Handbook 2020/21: Peter-Michael Weisse is listed as one of the top 10 leading senior partners in patent litigation ("great know-how in SEP topics"); (ed. 2017:) “excellent technical understanding”; Recommended in Chambers Europe 2021 ("He is straightforward and very well prepared"); (ed. 2017:) “ … well-regarded work on patent litigation, primarily in the telecoms, electronics and biotechnology industries.”, “an excellent attorney”. Recommended in Legal 500 2021. Recommended in WHO’S WHO LEGAL "Global Leader Patents 2020" "Global Leader Life Sciences - Patent Litigation 2020"; Listed in IAM Global Leaders 2022;  IAM The World’s Leading Patent Practitioners 2022 Top tier in “Individuals Infringement"; (ed. 2018) "In cases of extreme complexity, it has been known to assign numerous high-profile partners to ensure the right outcome for top clients. Peter-Michael Weisse is one such practitioner: a key figure on the SEP and FRAND scene, he has handled some of Germany’s top recent cases." “He’s very exact: fair, sharp-minded and quick-thinking.” “He really gets stuck into his briefs and never considers giving up. "telecoms titan"; (ed. 2017): “… Peter-Michael Weisse has chalked up plenty of IP headlines: He plays in the Premier League of patent litigation. It is exciting working with him because he never stops until he is 100% sure he will win. His legal analysis is truly brilliant.‘“; Wirtschaftswoche/Handelsblatt 2021: Particularly recommended expert for patent law. Recommended in Managing Intellectual Property "IP Stars 2020"; named the Best Lawyers 2022 Technology Law "Lawyer of the year" in North Rhine-Westphalia.


Peter-Michael Weisse studied law in Bochum and Berlin, and was also a Postgraduate at the Tulane University School of Law, New Orleans, USA (“LL.M.”). Peter-Michael Weisse practiced patent law at Pünder Volhard Weber & Axster (Clifford Chance) (since 1996) before joining Wildanger in 2001.

Memberships / Publications

Peter Michael Weisse belongs to the German Association for Intellectual Property and Copyright (GRUR), German group of the International Association for the Protection of Intellectual Property Rights (AIPPI), European Patent Litigation Lawyers Association (EPLAW), German Association of Intellectual Property Professionals (VPP), Intellectual Property Owners Association (IPO) and American Intellectual Property Law Association (AIPLA).

Peter-Michael Weisse publishes on patent law.


German, English 

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