Patent litigation in Germany and France, German and European patent opposition and appeal proceedings, patent invalidation proceedings, patent and utility model prosecution, in particular in the technical fields of 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 regularly involved as 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. Recent important cases have concerned counseling and patent litigation for major global companies in the fields of DRAM technology, MP3, GSM and 3G telecommunication standards and smart cards.

Being also a qualified French patent attorney, Johannes Lang is also experienced in French patent litigation procedure and in particular in French discovery proceedings ("saisie-contrefaçon").

Johannes Lang is listed in "Best Lawyers" 2009 and 2010 and was honoured in 2005 by the IP publisher Informa with the "IP Awards" in the category of "best achievement in patent litigation" for his work concerning a protracted multinational patent conflict relating to a technical standard for semiconductor technology.

Johannes Lang is chairman of the Software Patent Committee of the German Patent Bar Association, and member of the IPO Software and Business Methods Comittee. He is lecturing patent infringement law at the Kurt Härtel Institute of Hagen University and regularly lectures and publishes, in particular in the field of software patents. He is co-author of "Concise European Patent Law", a commentary on European intellectual property legislation (see publications).

As of January 2009, Johannes Lang has been elected Managing Partner of the firm.

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
Since 2009	Managing Partner of the firm

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)

German, English, French