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Gerold Fiesser


Patentanwalt, European patent attorney, European trade mark and design attorney

Dr. rer. Nat. Dipl. –Chem., DESU

Dr Fiesser is a German patent attorney and a European patent, trade mark & design attorney. He works in the areas of life sciences and organic and polymer chemistry including personal care items and compositions, beauty, polymer chemistry and polymer applications and additives as well as oils and fats.

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Dr. Fiesser works in all fields of patent and trade mark law with a focus on prosecution of patent applications, oppositions, appeals and litigation. He is also specialised in legal opinions, holding a series of lectures on that topic. Dr. Fiesser is experienced in the management of large trade mark portfolios.


Dr. Fiesser studied Chemistry at the Johannes-Gutenberg-University in Mainz and at the University of Massachusetts in Amherst, with a focus on polymer chemistry. He graduated with a diploma in Chemistry and received his PhD from the Max-Planck-Institute for Polymer Research in Mainz. He began his career in the field of intellectual property in the patent department of Henkel KGaA in Duesseldorf.

Memberships & organisations

Examining committee for German patent attorneys.