Dr. Jens Wortmann

Patent Attorney


German and European Patent Attorney
Partner of Zellentin & Partner

  • Study of chemistry at the University of Cologne
  • Doctorate (Dr. rer. nat.) in organic chemistry
  • In intellectual property since 1996

Technical Expertise

  • Organic Semiconductors, Organic Photovoltaics, Li-Ion Batteries and NiMH Batteries
  • Industrial Organic Chemistry
  • Polymer Chemistry
  • Cosmetics, Detergents and Aroma Chemicals
  • Technical Chemistry
  • Process Engineering

Legal Expertise

  • Worldwide coordination of patent applications
  • Opposition and appeal proceedings before the European Patent Office (EPO) and the German Patent and Trademark Office (DMPA)
  • Preparation of opinions on questions of patent infringement and validity
  • Seminars and lectures on industrial property rights for inventors and students
  • Publications on various topics of intellectual property law