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Contact vCard

P +49 (0) 89 92 40 90

Arabellastraße 30
81925 München

For security reasons we give you the possibility to communicate with Joachim Renken in an encrypted form by e-mail.

Joachim Renken

Dr., Dipl.-Chem., German and European Patent Attorney


Languages: English, German, Spanish


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.


IAM 1000
"Extremely capable patent attorney who is creative and reliable when preparing and presenting arguments. He is always a pleasure to work with too, because he’s friendly and open-minded, with a good sense of humour. Even under the most difficult circumstances, you feel comfortable. He is at his best handling opposition and appeal cases before the EPO. He comes to matters extremely well prepared and is always in total control of the situation, as he has an exceptional understanding of the game and always keeps his mind clear in spite of the stressful atmosphere."