Partner, Patent Attorney Munich
Profile of Hanns-Juergen Grosse

The best part of my job is being able to have a real impact on our clients’ futures. Being a German patent attorney, I especially enjoy working in D Young & Co’s international and diverse atmosphere.

I’ve been a partner at D Young & Co since 2017. Before I joined, I worked in-house for the Infineon Technologies Intellectual Property Department and in private practice. My main areas of expertise are in automotive engineering, computer-implemented inventions, medical technology, microprocessor engineering, semiconductors and telecommunications. I have significant experience in handling complex legal issues regarding existing patent portfolios, including re-establishment of rights in various jurisdictions.

Most of my work is for large and medium-sized corporate clients from the UK, US and mainland Europe, particularly in the area of preparation and prosecution of patent applications. As a German patent attorney, I advise on German intellectual property rights. Embracing technology, I have been a ham radio operator ever since my early days, when I became one of the youngest licenced amateur radio operators in Germany.


  • BEng (Hons) in Electronic Engineering, University of Central Lancashire 1992.
  • Qualified Engineer in Telecommunications and Microprocessor Engineering, University of Applied Sciences 1993.
  • PhD in Electronic Engineering, University of Central Lancashire 1997.
  • Chartered Engineer (CEng) 2001.
  • European Engineer (Eur Ing) 2002.
  • European Patent Attorney 2005.
  • Law for German Patent Attorneys, FernUniversitaet 2008.
  • German Patent Attorney 2009.
  • European Trade Mark and Design Attorney 2009.
  • Diploma in Patent Litigation in Europe, Université de Strasbourg 2013.
  • Introduction to English Law, London School of Economics and Political Science (LSE) 2014.
  • Chartered Patent Attorney 2015.
  • Basic Litigation Skills Certificate, CPD Training (UK) Ltd 2016.
  • Registered representative before the Unified Patent Court (UPC) 2023.


  • Chartered Institute of Patent Attorneys (CIPA).
  • European Patent Institute (epi).
  • German Patent Attorneys Association.
  • International Association for the Protection of Intellectual Property (AIPPI).
  • Engineering Council (EC UK).
  • European Patent Litigators Association (EPLIT).
  • European Federation of National Engineering Associations (FEANI).
  • International Federation of Industrial Property Attorneys (FICPI).
  • German Association for the Protection of Intellectual Property (GRUR).
  • The Institute of Electrical and Electronics Engineers, Incorporated (IEEE).
  • Institution of Engineering and Technology (IET).
  • Association of Intellectual Property Experts (VPP).
Rechtsbeistand und -beratung von hoher Qualität zu vernünftigen Preisen.
IP Stars (Managing IP)
Hervorragend in jeder Hinsicht.
Legal 500
Die Leute sind wirklich beeindruckend und haben eine gute Einstellung zur Mandantenbetreuung.
Hanns brings valuable in-house experience to the table, thanks to a spell at Infineon Technologies; he produces straightforward, crystal-clear reports that can easily be reviewed in a boardroom.
World Trademark Review 1000