Siegfried H. Elsing

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...

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.

Kirsten Placke is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Kirsten, 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 Kirsten is held by other top lawyers in the same geographic and legal practice area.

Achim Kirchfeld is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Achim, who practices law in Düsseldorf, Germany, has been recognized since 2011. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Achim is held by other top lawyers in the same geographic and legal practice area.

Christian Pinnow is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology Law and Life Sciences Practice and Health Care Law. Christian, 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 Christian is held by other top lawyers in the same geographic and legal practice area.

Hans-Ulrich Wilsing is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Governance and Compliance Practice, Corporate Law and Mergers and Acquisitions Law. Hans-Ulrich, who practices law in Düsseldorf, Germany, has been recognized since 2012. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Hans-Ulrich is held by other top lawyers in the same geographic and legal practice area.

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...

Helmut Balthasar is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Helmut, who practices law in Cologne, Germany, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Helmut is held by other top lawyers in the same geographic and legal practice area.

Norbert Schulte is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Mergers and Acquisitions Law and Real Estate Law. Norbert, who practices law in Düsseldorf, Germany, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Norbert is held by other top lawyers in the same geographic and legal practice area.

Thomas Kerkhoff is partner in our Düsseldorf office. For many years he has been advising clients on intellectual property law. His work includes advice on trademarks, their protection and their realisation. In cooperation with accountants and business economists he is regularly involved in the taxational assessment of trademarks. His work also includes all aspects of copyright protection, designs and unfair trading. He also does litigation in cases of intellectual property infringements ...