Judge in civil jurisdiction as a judge in criminal and civil cases at the Local Court Kassel and Higher Regional Court Frankfurt in the period 1984 - 1998.
Judge at the Federal Patent Court in trademark and patent law in the period 1998 - 2019; as of 2012 as presiding judge of the 4th Nullity Senate with different focuses of activity in the fields of chemistry, mechanical engineering and electrical engineering.
Training and seminar activity in the context of the training of patent attorney candidates in the field of trademark and patent law in the period 2001-2019.
Presentations
March 2021, Webinar
FORUM Online-Seminar: "The Patent Dispute"
in German language
03. March 2020, Webinar
FORUM Online-Seminar: "Case law of the BPatG"
in German language
14. October 2020
Lecture on preclusion in nullity proceedings before the BPatG, Bayerischer Patentanwaltsverein
in German language
Open speech
25. September 2020, Webinar of the Akademie Heidelberg
Patent nullity and nullity appeal
in German language
Open speech
Publications
Textbook: "Patent-, Marken- und Urheberrecht"
in German language
Autor seit der 8. Auflage
11. Auflage. 2020; Vahlen. ISBN 978-3-8006-6303-3
Open publication
Comment: "BPatG - Patentgesetz" - Busse/Keukenschrijver
in German language
Co-Autor
8., neu bearbeitete und erweiterte Auflage. 2016; De Gruyter. ISBN 978-3-11-032378-8
Open publication
Annual Reports on the Case Law of the Federal Patent Court in Patent Law 2003-2014
GRUR 2007, 363: Thoughts on the BGH decision "Ichthyol II" Reassessment of the "integration question" in trademark collision proceedings?