Partner, German and European Patent Attorney

Siebertstrasse 3
Munich 81675


Patent star 2023



Practice areas:

Patent litigation
Patent office proceedings
Patent prosecution

Industry sectors:

ICT & software
Medical devices
Universities & research

Rainer Viktor started his training in the field of Intellectual Property protection at the IP law firm VOSSIUS in Munich in 1995. He was admitted to practice as a German Patent Attorney (Patentanwalt) and a European Trademark Attorney in 1998, and as a European Patent Attorney in 1999. Mr. Viktor became a partner in the firm in 2000.

Rainer Viktor advises his clients in prosecution of patent applications in the areas of medical devices, health care products, software, bioinformatics, business methods, and electronic devices, and has extensive experience in opposition and appeal proceedings in these fields.

Mr. Viktor is also involved in infringement and revocation proceedings, for example relating to standards-relevant patents in the field of telecommunications.

He is responsible for the patent portfolio of several start-up enterprises in the field of green energy, automotive simulation technology, and digital imaging software. His clients comprise not only multinational enterprises and large companies but also universities, including their start-up companies.

He represents his clients before the European Patent Office (EPO), the German Patent and Trademark Office, the Federal Patent Court (Bundespatentgericht) , the German district courts (Landgerichte) and the Federal Supreme Court (Bundesgerichtshof, BGH).

Rainer Viktor studied electrical engineering and information technology at the Technical University of Munich (TUM), specializing in high-voltage engineering and electrical power engineering. After working as an engineer for the company Reyrolle Ltd. in United Kingdom, he joined VOSSIUS.

His book “Re-establishment of Rights Proceedings at the EPO” (“From Loss to Life”) on the European Patent Office's jurisdiction in the field of re-establishment of rights was published in January 2017. He is also co-author of Kluwer's Concise European Patent Law.

Mr. Viktor lectures on business methods and software inventions, and teaches in Germany and abroad on the EPO problem-solution approach.

Network Memberships:

  • Patentanwaltskammer
  • epi