Christian Osterrieth

Partner at HOYNG ROKH MONEGIER
Ranked in Germany
IAM Research

The Patent 1000 focuses exclusively on patent practice and has firmly established itself as the definitive 'go-to' resource for those seeking world-class legal patent expertise.

Silver - Individuals: infringement

Recommended - Individuals: transactions

As far as European IP boutiques go, it is hard to beat HOYNG ROKH MONEGIER, a firm that handles some of the most complex and high-profile patent disputes continent-wide. Its German contingent is a key component of this offering, serving a diverse and illustrious clientele from its base in Düsseldorf and branch office in Mannheim. Key among said clients is Fujifilm, which it has recently been fighting hard for in infringement proceedings against a US competitor. Leading on the case is Tobias Hahn, with Christine Kanz at his side. Hahn has been working in patents for the best part of two decades, is well placed to advise on parallel US and European litigation, and ably handles FRAND- and antitrust-related cases, while Kanz’s focus is on pharmaceutical disputes. The latest highlight in a 20-year-career is her work acting for Gilead in an SPC-related battle, alongside Mirko Weinert, who works either side of the contentious/non-contentious divide and pairs his patent work with a thriving trade secrets practice. He is also part of the team advising Huawei on a range of issues including SEP licensing – working alongside him are Kay Kasper and Stefan Richter, and leading on the work are Tobias Hessel and Klaus Haft. Kasper is also an expert when it comes to SEP licensing, fighting related cases in court and advising automotive companies on portfolio strategy, while Richter has spent the last decade working with IT and telecommunications patents, as well as committing himself to a healthy amount of data protection work. Hessel, on the other hand, is known for his record acting in opposition and nullity proceedings before the EPO, while Haft takes naturally to even the most complex medical devices and high-technology patents, thanks to his background in physics. Leading the department is Martin Köhler, who since 1998 has acted for some of the biggest names in fields including pharmaceuticals, telecommunications and electronics – including his recent high-profile work for Samsung. Completing the line-up in this year’s IAM Patent 1000 are elder statesmen Christian Osterrieth and Thomas Reimann, who have been in the game since 1984 and 1973, respectively. Both effortlessly craft multinational litigation strategies across all patent-rich industries.

Christian Osterrieth's Profile

Christian Osterrieth has worked as an attorney at law since 1984, focusing exclusively on national, European and international IP law (technology law, trademark law and unfair competition law) since 1986, with a further specialisation for many years in patent litigation and licensing.

Mr Osterrieth represents major and global clients in many technology-driven industries, including electronics, automotive, medical devices and pharmaceuticals. His work is particularly focused on the development and implementation of litigation strategies in multinational patent litigation.

Mr Osterrieth studied law at the University of Konstanz. After passing his Bar exam, he studied French and international IP law at the University of Paris II (Université de Droit, d’Economie et des Sciences Sociales).

Mr Osterrieth is the author and co-author of various books and articles on patent law and is a frequent speaker at international conferences relating to patent law.

He is honorary professor of patent law at the University of Konstanz and guest professor at the Universities of Strasbourg (Centre for International Intellectual Property Studies), France and Haifa, Israel.

From 2002 to 2004 he was president of the Licensing Executives Society in Germany and acted as vice president of LES International from 2012 to 2014. He is a member of the Patent Committee of the German Intellectual Property Association, chair of the IP Committee of the German Bar Association and a member of the Patent Committee of the Council of Bars and Law Societies of Europe.

Firm Profile

HOYNG ROKH MONEGIER is a specialised European IP law boutique, which was created in 2015 when the well-established top-tier IP firms Hoyng Monegier and Reimann Osterrieth Köhler Haft (ROKH) joined forces. In 2019 the firm teamed up with French patent litigation boutique, Véron & Associés. Today, HOYNG ROKH MONEGIER has more than 100 passionate IP professionals and offices in Amsterdam, Brussels, Düsseldorf, Lyon, Madrid, Mannheim (branch office), Munich and Paris.

In all of its locations, HOYNG ROKH MONEGIER services the needs of clients in the field of IP law – including patent and trade secret, trademark, copyright and design right law – as well as in related fields, such as pharmaceutical regulatory law, unfair competition, media and advertising law and all IP-related contracts.

In patent law, HOYNG ROKH MONEGIER focuses on the technical areas of electronics, telecoms, pharmaceuticals, biotechnology, automotive and optics, in which it has decades of proven expertise. The firm also serves all other technical fields, including mechanics, electrical engineering and chemicals.

In addition, in the fields of trademark, copyright and design right law, HOYNG ROKH MONEGIER offers a complete range of services relating to the enforcement, exploitation, assessment and protection of these rights and is always at the forefront of new developments. Given the full harmonisation of European trademark and design right law, HOYNG ROKH MONEGIER is ideally placed to serve clients’ needs. HOYNG ROKH MONEGIER advises and represents its clients across a broad range of sectors, including food and beverages, pharmaceuticals, industrial design, media, entertainment and publishing.

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