Christoph Sieberg

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

Jens Klaus Fusbahn is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Jens Klaus, 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 Jens Klaus is held by other top lawyers in the same geographic and legal practice area.

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

Martin Wirtz works in all fields of intellectual property matters, with a particular emphasis on trade mark, competition, and copyright law, including litigation. A further focus of his work is patent infringement proceedings. His clients include large and medium-sized firms as well as international companies and associations from a wide variety of different areas. Martin Wirtz studied law at the University of Passau, the University of Freiburg, the University of Cologne, and at Queens' Colle...

Born in 1964 Legal studies at the Universities of Heidelberg and Bonn First Exam ("1. Staatsexamen") in 1990 Doctoral research at the Universities of Valencia (Spain) and Münster Legal clerkship ("Referendariat") at the Detmold District Court Elective posting at the Commission of the European Union in Brussels Doctor of Laws (Dr. jur.) 1993 Second (Bar) Exam ("2. Staatsexamen"), bar admission 1994, with the firm since 1994 Certified Specialized Attorney in Administrative Law since 1997 C...

David Kipping, LL.M., Maître en droit, is a lawyer and partner at Friedrich Graf von Westphalen & Partner and a Certified Specialist in intellectual property law. He also holds an LL.M degree from the universities of Cologne and Paris and a Maître en droit degree from Paris I, Panthéon-Sorbonne. David Kipping’s main focus lies on intellectual property law, trademarks and designs, unfair competition and advertising law, patent law, litigation, e-commerce law and li...

Monika Wenz is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Monika, who practices law in Düsseldorf, Germany, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Monika is held by other top lawyers in the same geographic and legal practice area.

Friedrich Kötter-Boisserée Dipl.-Finanzwirt Attorney Certified specialist in tax law Specialists areas : Tax law, transformation-of-companies tax law, transformation-of-companies law, criminal law for tax offenses I have been advising companies/individuals of all legal forms as a lawyer since 1990, specialising in tax law, and since 1997 I have also been licensed as a specialist lawyer for tax law. My former employment with the tax authorities of the state of North Rhine-Westphali...

Benedikt Schulz is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Benedikt, 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 Benedikt is held by other top lawyers in the same geographic and legal practice area.

Jens Kleinert practises as a lawyer and a certified tax lawyer, advising clients on all issues dealing with national and international tax law, in particular on the development of tax-optimised structures and the implementation thereof. This also comprises the development and application of capital market products, especially by using investment funds. He has broad experience in advising on complex restructurings and cross-border transactions. His focus is particularly on business succession ...