Sebastian Niehues

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...

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...

Christoph Barth is a lawyer recognized by Best Lawyers in the practice areas of Competition / Antitrust Law and Corporate Governance and Compliance Practice. Christoph practices law in Düsseldorf, Germany Best Lawyers has recognized Christoph Barth since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Christoph Barth is held by other lawyers.

Dr Michael Körner has been working as a lawyer in our Cologne office since 2018 and was appointed partner on January 1, 2026. He primarily advises clients in the areas of environmental law, public procurement law, public commercial law, surveying and cadastral law, and the law governing publicly appointed surveyors, in particular partnership law. He also advises on liability law, state liability and compensation law, and litigation. He speaks German and English.

Oliver Lieth is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law and Real Estate Law. Oliver practices law in Düsseldorf, Germany Best Lawyers has recognized Oliver Lieth since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Oliver Lieth is held by other lawyers.

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...

Alexander Hoppe is a lawyer recognized by Best Lawyers in the practice area of Corporate Law. Alexander practices law in Düsseldorf, Germany Best Lawyers has recognized Alexander Hoppe since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Alexander Hoppe is held by other lawyers.

Kristina Klaaßen-Kaiser is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law and Mergers and Acquisitions Law. Kristina practices law in Düsseldorf, Germany Best Lawyers has recognized Kristina Klaaßen-Kaiser since 2019. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Kristina Klaaßen-Kaiser is held by other lawyers.

Dr Jan Joachim Dreyer’s work includes antitrust defence, in particular for companies with strong market positions, in sales and traditional antitrust matters, compliance issues in sales and in all forms of cooperation between competitors. His areas of expertise also include global and local merger control, including litigation over decisions by authorities reaching the German Federal Court of Justice and the European courts, claims for damages arising from antitrust violations, state ai...

Mike Weitzel is a lawyer and partner at FGvW in Cologne. He is a specialist lawyer for insurance law and specialises, among other things, in product liability and product advice (especially for liability lines), insurance contract law as well as litigation and arbitration. He is a lecturer in insurance law at Hagen Law School, a member of the insurance law working group of the DAV and the author of numerous publications and specialist lectures. He speaks German and English.