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Bardehle Pagenberg

Work +49 89 92 80 50
Fax +49 89 92 80 54 44
Barcelona, Dusseldorf, Milan, Munich, Paris, Verona

Johannes Heselberger

Work +49(0)89 928 050
Bardehle Pagenberg

Work Department

Head of Patent Litigation Group


Johannes Heselberger, together with Tilman Müller-Stoy, heads the firm’s Patent Litigation Group.

His main areas of practice involve patent infringement and validity litigation, including opposition and appeal proceedings before the German Patent and Trademark Office and the European Patent Office as well as nullity proceedings before the German Federal Patent Court and the German Federal Court of Justice. His technical fields of expertise include medical devices, telecommunications and the automotive industry.

Johannes Heselberger has successfully conducted important patent infringement proceedings, often across national borders, representing both SMEs and major companies, with clients being world leaders in their field of technology.

With his multiple qualifications as an attorney-at-law and a European Patent Attorney, he is able to handle both the legal and technical aspects of a case.


1991-1994 Trainee at BARDEHLE PAGENBERG, Munich 1994-1999 Associate at BARDEHLE PAGENBERG, Munich and Paris Since 1999 Partner of the firm Since 2015 Vice-Managing Partner of the Firm


German, English


Johannes Heselberger is a regular speaker on topics in the fields of patent infringement and patent valuation. He teaches patent law at the Munich Intellectual Property Law Center (MIPLC).


1984-1990 Studied Physics at the University of Regensburg, Germany, graduating with a “Diplom-Physiker” degree 1985-1991 Studied Law at the University of Regensburg; First State Examination (degree-level qualification) 1991-1994 Training; studied Law in Munich, Speyer, Germany, and Houston, Texas 1994 Second State Examination (bar admission exam); Admitted as attorney-at-law 1999 Admitted as European Patent Attorney

Germany: Intellectual property

Patent litigation

Within: Patent litigation

Bardehle Pagenberg’s patent attorneys and attorneys at law have broad technical expertise with particular strength in matters concerning telecoms and mechanical and electronic engineering. Other areas of focus include software, IT and computer technology. The team, led by Johannes Heselberger, who is qualified both as an attorney at law and European patent attorney, and Tilman Müller-Stoy, advises a prominent client portfolio. Hans Wegner regularly acts for key client adidias in various patent infringement and nullity proceedings and Peter Chrocziel, who joined from *Freshfields Bruckhaus Deringer in February 2018, represented ST Microelectronics International in infringement proceedings at the Federal Court of Justice surrounding semiconductor patents. Other highlights include representing Intellectual Ventures in a multitude of patent infringement proceedings against prominent telecoms companies such as Telekom Deutschland and Vodafone, and acting for Nvidia in patent disputes between Broadcom and the defendants VW and Audi. Hewlett-Packard, Nintendo and Amgen are also clients. Stefan Lieck and Michael Kobler were promoted to the partnerhship in January 2018 and January 2019, respectively. Patent attorney Tobias Kaufmann is also recommended.

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Patent prosecution

Within: Patent prosecution

Bardehle Pagenberg ‘offers an outstanding level of advice due to the enthusiasm and excellence of its lawyers’. The ‘top’ team stands out for its ‘honest and pragmatic legal advice’ and is well versed both in the development of patent prosecution strategies and the associated enforcement of patents as well as in portfolio assessment. The firm’s range of services also include license contract matters and expertise in employee invention law. Hans Wegner, Johannes Lang,Christof Karl, who is qualified both as an attorney at law and patent attorney, and Joachim Mader head the practice, which saw promotion to partner of Axel Berger and Georg Anetsberger in January 2018 and of Patrick Daum and Benjamin Ruckert in January 2019. Highlights included acting for adidas in the registration and enforcement of patents and utility models, advising Apple and representing Memorial Sloan Kettering Cancer Centers in opposition proceedings at the EPO led by the ‘very experienced’ Johannes Heselberger. The broad coverage of sectors is visible in the firm’s client portfolio, which includes, among others, Synbias Pharma, Jaguar Land Rover, Nintendo, Qualcomm and Carl Zeiss SMS.

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