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Philipe Walter

Patent Attorney

Partner since 2007

Bleichstrasse 14
D-40211 Duesseldorf

Phone +49 211 90490-0
Fax +49 211 90490-49


Detailed profile

As a patent attorney at COHAUSZ & FLORACK, Philipe Walter has extensive expertise in the fields of electrical engineering, information technology and mechatronics. One of his clients is an internationally active energy group. In addition, Philipe Walter manages extensive portfolios of intellectual property rights for national medium-sized companies and advises them in patent infringement, opposition and nullity proceedings. He has been involved in numerous proceedings between smartphone manufacturers and court disputes between automotive suppliers and set-top box manufacturers. In addition, he deals with patent law issues in connection with international license pools that concern technical standards (especially Blu-Ray technology and video coding methods).

After studying electrical engineering at RWTH Aachen, he began his training in intellectual property law at COHAUSZ & FLORACK in 1999. Since 2002 he has been admitted as a German patent attorney and as a representative before the European Patent Office. In addition, he has completed a master's degree in "European Industrial Property Law". He joined COHAUSZ & FLORACK as a patent attorney in 2003 and has been a partner in the firm since 2007.

Philipe Walter advises his clients in German and English.


  • Legal 500 EMEA 2024
  • Legal 500 Deutschland 2024
  • JUVE Patent 2023
  • Best Lawyers 2024
  • IAM Patent 1000 2023
    “Philipe Walter is a very experienced patent attorney and has supported a number of litigation cases. He represents his clientele diligently across the entire breadth of the patent system. He is accomplished and very competent in his field. He has a great depth and breadth of understanding, and can cover a very wide spectrum of patent issues.”
  • Leaders League 2023
    (...) highly recommended for patent prosecution and recommended for patent litigation (…)
  • IAM Global Leaders 2023
  • JUVE Patent 2022
    "very good in infringement and nullity cases” (competitor)
  • IAM Patent 1000 2022
    "Philipe Walter manages large and high-value patent portfolios with finesse and deals dexterously with complex disputes involving electrical, software, internet and other technologies. He is also looked up to as an authority on licensing of standard-essential patents."
  • Best Lawyers 2023
  • Legal 500 EMEA 2022
  • Legal 500 Deutschland 2022
  • IAM Global Leaders 2022
  • IAM Patent 1000 2021
    “His background as an engineer for a mobile operator gives him great awareness of the challenges that arise from software inventions and innovations in the IoTfield."
  • Leaders League 2021
    Highly recommended for patent litigation
  • Best Lawyers 2022
  • The LEGAL 500 EMEA 2021
  • The LEGAL 500 Germany 2021
  • Wirtschaftswoche Ranking Patent Attorneys 2020
  • IAM Patent 1000 2020
    "A skilled portfolio manager whose contributions in litigation are extremely value additive, Philippe Walter is among the most distinguished patent attorneys in Germany. Navigationg complex licensing pool and standard matters, he knows how to get clients over difficult obstacles."
  • IAM Global Leaders 2020
  • Best Lawyers 2020
  • The LEGAL 500 EMEA 2020
  • The LEGAL 500 Deutschland 2020
  • IAM Global Leaders 2020
  • Wirtschaftswoche Ranking Patenanwälte 2019
  • IAM Patent 1000, 2019
    "(...) Mechanical sensation Philipe Walter is likewise “able to understand different technologies very quickly and in depth, writing applications that strike a great balance between breadth and focus” (...)
  • Chambers Europe and Chambers Global 2019
    Leaders in their Field
  • Best Lawyers 2020
  • The LEGAL 500 Deutschland und EMEA 2019
    "(...) very good patent law and technical expertise (...)"
  • IAM Patent 1000, 2018
    "(...) Electrical engineering wonder Philipe Walter has the foresight and analytical dexterity to put together inviolable strategies. (...)"
  • Best Lawyers 2018
  • Leaders League 2018
  • Chambers Europe und Chambers Global 2018
    "(...) He is capable of completing difficult specialised topics adeptly and in time."
  • The LEGAL 500 2018
    "(...) sehr strukturierte Arbeitsweise und dabei immer das große Ganze hinsichtlich der Unternehmensziele des Mandanten im Blick. (...)"
  • Chambers Europe und Chambers Global 2017
    "(...) assists with patent prosecution and portfolio management. He has a strong technical background in electrical engineering, and often handles matters relating to mechatronics and electromobility. Highlights include advising RWE on the creation and management of its patent portfolio spanning smart homes, e-mobility and renewable energy patents. (...)"
  • IAM Patent 1000, 2017
    "(...) has unique knowledge of the technical standards in Blu-ray technology and video encoding (...)"
  • Chambers Europe 2016
    "(...) We are happy with the quality of work. He has an excellent knowledge of new technology. (...)"
  • IAM Patent 1000, 2016
    "(...) broad and deep knowledge of all aspects of patent law and application procedures, and pragmatic advice - even in the most complex matters (...)"
  • Chambers Europe 2015