Peter Dieners

Hermann Kahlhöfer advises clients in patent law, in particular in the fields of electrical engineering, medical technology and physics. He has been working in the field of intellectual property for more than 40 years and has extensive experience in the field of national and international patent prosecution procedures and patent infringement matters as well as in the development and exploitation of intellectual property portfolios. After completing two years of military service with a spe...

Arne Kießling is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Arne, who practices law in Düsseldorf, Germany, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Arne is held by other top lawyers in the same geographic and legal practice area.

Marcus Nierkens is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Marcus, who practices law in Duisburg, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marcus is held by other top lawyers in the same geographic and legal practice area.

Michael Körner is a top attorney recognized by Best Lawyers in the practice area(s) of Public Law. Michael, who practices law in Cologne, Germany, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael is held by other top lawyers in the same geographic and legal practice area.

Kaan Gürer is a top attorney recognized by Best Lawyers in the practice area(s) of Competition / Antitrust Law, European Union Law and Litigation. Kaan, who practices law in Düsseldorf, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kaan is held by other top lawyers in the same geographic and legal practice area.

Simon Groneberg is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Simon, who practices law in Düsseldorf, Germany, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Simon is held by other top lawyers in the same geographic and legal practice area.

Ingo Klauß is a top attorney recognized by Best Lawyers in the practice area(s) of Competition / Antitrust Law. Ingo, who practices law in Düsseldorf, Germany, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ingo is held by other top lawyers in the same geographic and legal practice area.

Lutz Martin Keppeler is a top attorney recognized by Best Lawyers in the practice area(s) of Data Security and Privacy Law and Information Technology Law. Lutz Martin, who practices law in Cologne, Germany, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lutz Martin is held by other top lawyers in the same geographic and legal practice area.

Jörg Bornheimer is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Jörg, who practices law in Wuppertal, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jörg is held by other top lawyers in the same geographic and legal practice area.

Born in 1970 Legal studies at Bielefeld University First Exam ("1. Staatsexamen") in 1995 Doctoral studies as a Friedrich-Naumann-Stiftung fellow, dissertation on "Kapitalsicherung und Gläubigeranfechtung" (capital protection and creditor appeals) under Prof. Dr. Schön as doctoral advisor Legal clerkship ("Referendariat") at the Bielefeld District Court Second (Bar) Exam ("2. Staatsexamen") in 1998 With the firm since 1999 Doctor of Laws (Dr. jur.) 2001 Certified Specialized Attorne...