Zellentin & Partner is active in all areas of intellectual property. We advise and support you in the fields of patent law, utility model law, design law, trademark law, and related fields of law, such as employee invention law and contract law (licenses, cooperation agreements).

We have the technical and legal knowledge to obtain, defend and enforce your intellectual property rights and to attack third party intellectual property rights. We conduct for you proceedings before national, regional and international intellectual property authorities and the courts. We represent our clients in proceedings before the German Patent and Trademark Office (DPMA), the European Patent Office (EPO), the Office of the European Union for Intellectual Property (EUIPO) and the World Intellectual Property Organization (WIPO) as well as in appeal and nullity proceedings before the German Federal Patent Court (BPatG) and the Federal Supreme Court (BGH). In infringement proceedings we enforce your intellectual property rights together with selected attorneys-at-law before German infringement courts.

Zellentin & Partner has particular expertise in obtaining and enforcing intellectual property rights before the Russian Patent Office and the Eurasian Patent Office as well as the offices of the other successor states of the former Soviet Union. We are also your competent partner in obtaining Supplementary Protection Certificates (SPC) in those countries.

In addition to legal expertise, we have a high level of professional competence in the technical fields of chemistry, process engineering and life science, especially in

  • Polymers,
  • Formulations,
  • Organic Synthesis, 
  • Inorganic Chemistry,
  • Organic Electronics,
  • Batteries,
  • Cosmetics,
  • Detergents and Aroma Chemicals,
  • Plant Protection,
  • Organic Semiconductors
  • Organischer Photovoltaics,
  • Industrial Organic Chemistry,
  • Chemical Engineering,
  • Cement and Hydraulic Building Materials,
  • Computer-Implemented Inventions (CII) and Artificial Intelligence (AI)

In addition to the registration, prosecution, enforcement and defence of your intellectual property rights, we offer a wide range of other IP services. These include in particular:

  •     Preparation of opinions on questions of patent infringement and validity
  •     Monitoring and payment of maintenance fees
  •     Execution and evaluation of researches
  •     Property right monitoring and analysis of portfolios of your competitors
  •     Licensing and research cooperation agreements
  •     Recordation of transfers, and changes of name and address
  •     Translations German/English ↔ Russian of IP texts, such as patent applications, contracts and other documents

We have an established network of partner law firms with which we can competently and effectively advise and support you in the prosecution and enforcement of your patent applications, trademarks and designs, also abroad.