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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 Lang

Work +49(0)89 928 050
Bardehle Pagenberg

Work Department

Intellectual Property / Patents


Johannes Lang’s main areas of practice involve conducting patent litigation in Germany and France, German and European patent opposition and appeal proceedings, patent nullity proceedings before the German Federal Patent Court and the German Federal Court of Justice, and prosecuting patents before the patent offices.

Johannes Lang’s particular technical fields include software and computer-related inventions, electronics, information technology and telecommunications, semiconductor memories, digital image and audio processing, audio-video devices, smart cards and medical devices.

Johannes Lang is frequently the lead patent attorney in complex international patent litigation in Germany and Europe, particularly in cases requiring coordination with parallel US litigation or litigation in other European countries. Johannes Lang represents major global companies in patent litigation in the fields of computer technology, data compression, GSM and 3G telecommunication standards and smart cards.

As a qualified French patent attorney, Johannes Lang is also experienced in French patent litigation procedure, particularly in the “saisie-contrefaçon” (French proceedings to establish an infringement).

He gives lectures on patent infringement law at the Kurt Härtel Institute of the FernUniversität in Hagen, Germany, as well as regularly lecturing and publishing works in the field of software patents in particular.


1987-1990 Scientific assistant at the University of Karlsruhe, Germany, and at CNRS Lyon, France, in the fields of microprocessor design and digital image processing 1991-1992 RENAULT SA, Paris, France; Technical assistant of the Head of the car body production automation division 1993-1995 Patent attorney clerkship with BARDEHLE PAGENBERG, Munich 1996-2000 Resident partner in the Paris office of BARDEHLE PAGENBERG 1997 Trainee with Chinese patent law firm in Shanghai, China 1998 Trainee with Japanese patent law firm in Osaka, Japan 1998 Trainee with US patent law firm in Menlo Park (CA), USA Since 1999 Partner of the firm 2009-2014 Managing Partner of the firm


German, English, French


Chairman of the computer-software committee of the German Patent Lawyers Bar
Software and Business Method Committee of IPO (Intellectual Property Owners Association)


1982-1990 Studies of Electrical Engineering at Technical University of Karlsruhe, Germany; degree of Dipl.-Ing. (Master of electrical engineering) 1987-1988 Exchange Scholarship at I.N.S.A. (Institut National des Sciences Appliquées), Lyon, France 1994-1996 Legal studies at the University of Hagen, Germany 1996 Admitted to the German Bar of Patent Attorneys 1996-1997 Legal studies at Université Robert Schuman (CEIPI), Strasbourg, France; Diplomé en brevet d'invention (CEIPI) 1997 Admitted as European Patent Attorney 1997 Registered as a qualified person before the French Patent Office (INPI)

Germany: Intellectual property

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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