Hoffmann · Eitle - München, London, Düsseldorf

Dr. Joachim Renken

Dipl.-Chem., German and European Patent Attorney


Examination, opposition and appeal proceedings before the European and German Patent Offices, as well as the Federal Patent Court; nullity actions before the Federal Patent Court and Federal Supreme Court; litigation and legal opinions. Particular expertise in biotechnology, organic chemistry, food science and cosmetics. Litigation experience with patents involving pharmaceuticals, DNA chips and fine chemicals.


Articles on European patent law and numerous lectures on patent law issues, inter alia in cooperation with the Spanish Patent and Trademark Office.

Professional Memberships

Patent Attorney Bar Association, EPI, FICPI, VPP, AIPPT.


Studied chemistry at the Universities of Aachen and Heidelberg. Diploma and doctoral thesis in biophysical and bioanalytical chemistry at the University of Heidelberg. Practical experience in the field of surface chemistry, protein chemistry and bioanalytical devices. Erasmus Scholarship at the University of Montpellier (France). With Hoffmann · Eitle since 1996; German Patent Attorney since 2000; European Patent Attorney since 2001.

Personal Information

Two children. Leisure interests include tennis and hiking.


German, English, Spanish.

Professionals Chemistry & Biotechnology
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