Markus Lenßen Dr. iur., LL.M. (Cantab) | Partner

Markus is a fantastic partner to have onside in negotiations, thanks to his collaborative approach and clear communication skills.

IAM Patent 1000 2024

always quick in providing a unique combination of engineering and legal knowledge

IAM Patent 1000, 2023

Markus quickly assimilates complex information and is a true up-and-coming star.

IAM Patent 1000 2024

solid and reliable attorney, who provides nothing but the best in customer service

IAM Patent 1000, 2023

highly praised by the market for his litigation work

Juve Patent Germany, 2023


The focus of Markus’ work is on technical intellectual property rights. He appears for German, European and international clients in trials concerning the infringement and validity of patents and utility models. Markus has also gained particular expertise in matters of preliminary injunctions related to all kinds of IP rights and other aspects of product piracy. He serves clients from different fields of technology, including mechanical engineering, electronics and computer technology, telecommunications and biotechnology. Markus also acts for clients within the packaging, automotive and medical engineering industries. His professional and personal interests meet when it comes to aviation and agricultural technology.

Alongside his work in technical intellectual property rights, Markus provides advice across the entire spectrum of competition law, such as unfair competition issues and infringement of designs or trademarks. 

For his doctorate, Markus researched at the interface between anti-trust law and economics, and published his thesis on the Relevant Market in Anti-Trust Law. His Ph.D. studies were supported by a postgraduate scholarship from the German Science Foundation Assembly, Working Committee Economy and Law (Stifterverband für die deutsche Wissenschaft, Arbeitskreis Wirtschaft und Recht). As an IP lawyer, his studies in anti-trust law are of central value when it comes to the interface between IP and anti-trust law, for example in standard essential patents.

Markus was called to the bar as lawyer (Germany) in 2009 and became a Partner in 2020.

Key cases

  • Brother ./. Pelikan et. al. (ink jet printers)
  • Körber ./. G.D (mechanical engineering for the tobacco industry)
  • ZTE ./. LG Electronics (mobile phones)
  • IP Bridge ./. LG Electronics (mobile phones)
  • 4Jet ./. Hankook (laser applications for vehicle tyres)
  • 4Jet ./. Nikon (laser applications for aviation)
  • Pierburg / MS Motorservice ./. various counterfeiters (automotive power components)
  • TRW ./. iSi Automotive (automotive air bags)
  • Freudenberg ./. Winkelmann (automotive power components)
  • Kichhoff Automotive ./. GEDIA (automotive press hardening)
  • Bombardier ./. Vossloh (railway industry)
  • Kröger Fahrzeugbau et al. ./. Green Farming (agriculture)
  • Conow ./. Green Farming (agriculture)
  • Welte ./. Hohenloher Spezialmaschinenbau (forestry vehicle construction)
  • Bode ./. Ecolab (disinfection technology)
  • RAU-BE ./. B. Braun (health care supplies)
  • Eurospital ./. AESKU (immunology antibody detection)


19992004 Undergraduate Studies Universities of Cologne and Bonn

2005 – 2006 Postgraduate Studies (Master of Law) University of Cambridge, Trinity Hall

2007 Doctorate Degree by the University of Bonn, Institute for Commercial and Economic Law, Prof. Dr. Daniel Zimmer, LL.M.

2007 – 2009 Legal Clerkship at the Higher Regional Court of Hamburg

Connections & Networks 


Awards & Recognitions

Study Scholarship of the German National Academic Foundation (Studienstiftung des deutschen Volkes)

Postgraduate Scholarship by the Cambridge European Trust and the German Academic Exchange Service (DAAD)

Jenkins European Scholarship awarded by the University of Oxford

www …
… windy desert, wide horizons, wild nature – adventure is calling me
on equal footage …
… is where I found myself at nighttime with a curious lioness in the Kalahari
5109m a.s.l. …
… is what I reached traversing one of Africa’s last glaciers

The Rospatt Team

Our reputation and success have been built on a team of lawyers committed to excellence and perfection in their work. All of us specialized in IP law from the beginning of our careers. For this reason, every year of our combined IP law experience is directly relevant to your needs.