Frank Siegburg

Dr Marcus Richter offers advice on all aspects of individual and collective labour law to national and international companies. In particular, he has considerable experience advising on corporate acquisitions, reorganisations, restructurings, outsourcing and integration projects. As part of this he is responsible for both the strategic conception and the negotiations with unions and works councils on wage agreements, settlement of interests, social plan, company agreements and arbitration pro...

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

Dr Karl Friedrich Dumoulin primarily advises companies on issues of national and international commercial law in their day-to-day business (supply and service agreements, cooperation and distribution agreements, questions relating to competition law and IP law, in particular trademark applications, licence agreements). Dr Dumoulin also represents his clients before courts, offices and courts of arbitration in these areas. In particular, Dr Dumoulin specialises in the field of financial servic...

Born in 1969 Legal studies at Bielefeld University First Exam ("1. Staatsexamen") in 1995 Research associate under Prof. Dr. Gerhard Otte (Chair for Civil Law, Civil Procedure and Legal History) at Bielefeld University, 1995 - 1998 Legal clerkship ("Referendariat") at the Bielefeld District Court Second (Bar) Exam ("2. Staatsexamen") in 1997 Judge at the Güstrow Local Court, 1998 - 1999 Bar admission in 1999 and with the firm since then Doctor of Laws (Dr. jur.) 2002 Appointment as notar...

Christian Bärenz is a lawyer recognized by Best Lawyers in the practice area of Restructuring and Insolvency Law. Christian practices law in Cologne, Germany Best Lawyers has recognized Christian Bärenz 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 Christian Bärenz 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.

Jörn Zons is a lawyer and partner at Friedrich Graf von Westphalen & Partner in Cologne. Jörn’s main focus lies on German and international construction and engineering projects as well as domestic and international dispute resolution in litigation, arbitration and alternative dispute resolution proceedings. He is also a regular referee on German and international construction and engineering projects and dispute resolution at seminars, associations and in-house for compan...

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...

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.

Staffan Illert is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law and Mergers and Acquisitions Law. Staffan practices law in Düsseldorf, Germany Best Lawyers has recognized Staffan Illert since 2020. 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 Staffan Illert is held by other lawyers.