Dipl.-Ing., Dipl. CEIPI
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, 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).
Lang is similarly well-versed in software and computer-implemented inventions and is well known for his advice on cross-border infringement battles.
IAM Patent 1000, 2022
Co-managing partner Lang is a prolific filer across the electronics, IT and telecommunications fields whose recent credits include representing adidas and Apple at the EPO.
IAM Patent 1000, 2021
Johannes Lang specialises in handling complex opposition and nullity proceedings for clients in the telecommunications and technology sectors. Lang is also qualified as a patent attorney in France.
Chambers Global and Europe, 2020
Johannes Lang is a repository of wisdom on all things computer related, possessing notable proficiency in the prosecution and defence of patents before all of the relevant patent offices.
IAM Patent 1000, 2019
Prosecuting cutting-edge applications for Apple keeps Johannes Lang busy.
IAM Patent 1000, 2018
Lang is also qualified as a patent attorney in France, speaks French fluently and is highlighted by commentators for his knowledge of the French market.
Chambers Global and Europe, 2018
Johannes Lang is applauded for his technical expertise in software, electronics and IT, where he handles patent prosecution, as well as opposition, appeal and invalidity proceedings. Of late, he has advised Green Impact Holding on numerous patent prosecutions, licensing and co-operation agreements. Interviewees comment: ›He is very thorough and able to translate the technical details into a good commercial approach‹.
Chambers Global, 2017
Johannes Lang is a computer whizz firmly plugged into the latest technological developments.
IAM Patent 1000, 2017
Johannes Lang is best known for patent prosecutions for software, electronics and IT companies. One client states: ›He gave quick advice and was very easy to work with.‹
Chambers Europe, 2016
Johannes Lang focuses on software and computer-related inventions, in particular digital image and audio processing and smart cards.
IAM 1000, 2016
Johannes Lang ›can navigate the trickiest briefs with finesse‹
IAM Patent 1000 - 2014
Among the patent attorneys, […] especially […] Johannes Lang stands out.
The Legal 500 Deutschland 2014
He is regularly involved in complex patent litigation in Germany and Europe, requiring coordination with the US or European countries.
Chambers Europe, 2013
Johannes Lang gives ›clear advice‹.
Legal 500 D / Legal EMEA (D), 2016
The overall impression conveyed by working with Johannes is overwhelmingly positive. He delivers great execution and positive results. His good judgement and pragmatic advice are especially to be commended. His knowledge and dedication to client success are admirable. Johannes is a very experienced patent attorney.
IAM Patent 1000, 2023
Former chairman (2008 to 2017) and presently vice chairman of the
computer-software committee of the German Patent Lawyers Bar
Software and Business Method Committee of IPO (Intellectual Property Owners Association)
GRUR, LES, VPP, FICPI, EPI
He is the co-author of “Concise European Patent Law”, a commentary on European intellectual property legislation.
Lectures & Seminars
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.