All success comes from trust

Dr. Susanne Sonnenhauser

Dr. rer. nat., Dipl.-Biol., German Patent Attorney,
European Patent Attorney, European Trademark & Design Attorney
Registered Representative before the Unified Patent Court

+49 89 69 39 21-0sonnenhauser@pruefer.eu

Professional career

Ms Sonnenhauser has been working in the field of intellectual property since 2005, and is admitted as a German Patent Attorney and European Patent Attorney. She has been with Prüfer & Partner since 2008.

Susanne Sonnenhauser has studied biology at the Technical University of Munich with a focus on genetics, microbiology and immunology and has graduated in 2001 with a diploma thesis in the field of analysis of signal transduction in cells. Subsequently, she completed her doctoral thesis in the field of regulation of the immune response.

German, English, French

Specialist areas of activity


  • Patent prosecution (patent drafting; examination proceedings)
  • opposition and appeal proceedings
  • Infringement and validity opinions, freedom-to-operate (FTO)-analyses, due diligence
  • consultancy with regard to trademarks (trade mark application, developing of a trade mark strategy, developing of a trade mark portfolio)

Pharma, life science and biotechnology, in particular:

  • medicaments (active substances, formulations), biopharmaceuticals
  • virology and genetic engineering
  • biological materials, DNA-related inventions and vaccines
  • therapeutic and diagnostic methods
  • medical products and devices, targeted drug delivery
  • medical technology (such as balloon catheters)

Publications and memberships


Oser A. und Sonnenhauser S., JUVE Handbuch Wirtschaftskanzleien 2022/2023, 773-774: “Plausibilität – ein ungelöstes Problem bei der Patenterteilung”


Chamber of Patent Attorneys
epi – European Patent Institute
FICPI – International Federation of Intellectual Property Attorneys