Gustav Liedgens

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...

Matthias Terlau is a lawyer recognized by Best Lawyers in the practice area of Banking and Finance Law. Matthias practices law in Cologne, Germany Best Lawyers has recognized Matthias Terlau 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 Matthias Terlau is held by other lawyers.

Patrick Daum is a lawyer recognized by Best Lawyers in the practice area of Patent Attorney. Patrick practices law in Düsseldorf, Germany As a patent attorney, Patrick Daum is involved in patent prosecution as well as opposition proceedings to attack and defend patents in the areas of wireless communications (mobile communications), electrical engineering, aerospace technologies and mechanics. A further aspect of his work focusses on the enforcement of patents in litigation and nullity p...

Claudia Maaßen LL.M. is a lawyer and partner at Friedrich Graf von Westphalen & Partner. She has been working in the litigation and arbitration practice group of Friedrich Graf von Westphalen’s Cologne office since 2016. Claudia Maaßen is a specialist in dispute resolution with a focus on manager liability and D&O and product liability. Her clients include insurance companies, managers and private companies. Claudia Maaßen speaks German, French and English.

Karl Maria Walter is a lawyer recognized by Best Lawyers in the practice area of Corporate Law. Karl Maria practices law in Düsseldorf, Germany Best Lawyers has recognized Karl Maria Walter since 2014. 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 Karl Maria Walter is held by other lawyers.

Born in 1972 Legal studies at Bielefeld University First Exam ("1. Staatsexamen") in 1998 Doctoral research a Friedrich-Naumann-Stiftung Fellow Research associate under Prof. Dr. Oehler (Chair for Commercial and Business Law, as well as Comparative Law) at Bielefeld University Legal clerkship ("Referendariat") at the Bielefeld District Court Second (Bar) Exam ("2. Staatsexamen") in 2001 Bar admission in 2002, and with the firm since then Doctor of Laws (Dr. jur.) 2003 Certified Specialized At...

Dipl.-Kfm. Dr. iur. Maximilian Koch is the Managing Director and Founder of KOCH Rechtsanwaltsgesellschaft mbH in Dusseldorf, Germany. He studied economics at the University of Hagen (Diplom-Kaufmann) and law at the University of Osnabruck (1st legal state exam with honors, ranking among the top 5% of graduates), in addition to earning his Dr. iur. "summa cum laude". After completing his legal clerkship in Lower Saxony, he excelled in the 2nd state law examination, achieving a high distinctio...

Wibke Schumacher is a lawyer recognized by Best Lawyers in the practice areas of Energy Law and Tax Law. Wibke practices law in Cologne, Germany Best Lawyers has recognized Wibke Schumacher 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 Wibke Schumacher is held by other lawyers.

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.

Jens Ortmanns is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law, Private Equity Law and Real Estate Law. Jens practices law in Düsseldorf, Germany Best Lawyers has recognized Jens Ortmanns since 2017. 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 Jens Ortmanns is held by other lawyers.