Andreas Müller-Wiedenhorn

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...

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 ...

I was born in 1976 and studied law in Bonn (Germany) and Strasbourg (France). After my legal traineeship at the Bonn Regional Court and the 2nd state law examination, I was admitted to the bar in 2005. In 2011, the board of the Cologne Bar Association allowed me to use the title “Specialist Lawyer for Tax Law”. In 2016, I successfully took part in the “Certified Executor of Wills (AGT)” course, which was carried out in cooperation with the Working Group for Wills Execu...

Rainer Krüger is a lawyer recognized by Best Lawyers in the practice area of Restructuring and Insolvency Law. Rainer practices law in Bielefeld, Germany Best Lawyers has recognized Rainer Krüger since 2027. 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 Rainer Krüger is held by other lawyers.

Olaf Konzak is a partner in the Cologne office of Friedrich Graf von Westphalen & Partner and heads the public law practice. In September 2018, Olaf Konzak and a team of four lawyers from LLR Legerlotz Laschet und Partner moved to the FGvW office in Cologne. Since September 1, 2018, he has been a partner in the practice in public law. His practice focuses on environmental and waste law, chemicals and substances law and public building law. Olaf Konzak has been working as a lawyer since 19...

Antonio Calderón is a lawyer recognized by Best Lawyers in the practice area of Mergers and Acquisitions Law. Antonio practices law in Düsseldorf, Germany Best Lawyers has recognized Antonio Calderón since 2025. 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 Antonio Calderón is held by other lawyers.

Born in 1976 Legal studies at Bielefeld University, 1995 - 2000 Supplementary studies in informatics at Bielefeld University, 1996 - 1998 First Exam ("1. Staatsexamen") in 2000 Postgraduate studies in legal informatics at the Universities of Hannover and Vienna, 2000 - 2001 Research associate at Bielefeld University, 2001 - 2002 Legal clerkship ("Referendariat") in Bielefeld and Düsseldorf, 2002 - 2004 Doctor of Laws (Dr. jur.) 2004 Second (Bar) Exam ("2. Staatsexamen") in 2004 Worked ab...

Katharina Landes is a lawyer recognized by Best Lawyers in the practice area of Data Security and Privacy Law. Katharina practices law in Cologne, Germany Best Lawyers has recognized Katharina Landes since 2025. 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 Katharina Landes is held by other lawyers.

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...

Paul Lange is a lawyer recognized by Best Lawyers in the practice area of Intellectual Property Law. Paul practices law in Düsseldorf, Germany Best Lawyers has recognized Paul Lange since 2009. 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 Paul Lange is held by other lawyers.