Firm Profile > Rospatt Osten Pross > Dusseldorf, Germany

Rospatt Osten Pross
PO BOX 110935, 40509 DÜSSELDORF
Emanuel-Leutze-Straße 11

Patent litigation Tier 2

With offices in Düsseldorf and Mannheim, Rospatt Osten Pross continues to be one of the most established firms for patent litigation in Germany. The practice is regularly involved in infringement proceedings as well as opposition and nullity proceedings and, to a lesser extent, in patent vindication procedures. It covers a broad technical spectrum and acts for an impressive roster of international clients in matters pertaining to, among others, technology, pharmaceutical and electrical engineering patents. The core team includes Max von RospattHetti HilgeHenrik Timmann, Thomas Musmann and Rüdiger Pansch, all of whom cover a wide range of patent law work.


‘A typical dispute law firm in Düsseldorf with highly specialised partners and a lot of experience at the court location Düsseldorf.’

‘The law firm is characterised by its high professionalism, profound legal experience and outstanding technical knowledge.’

‘Henrik Timmann possesses an extraordinary legal know-how and a genius technical comprehension. He is characterised by a high degree of experience and is highly valued and appreciated by his colleagues and in court.’

‘Hetti Hilge and Thomas Musmann are among the top lawyers in Germany. They work precisely and thorough and possess a strong persuasiveness . Cases of patent infringement are left in good hands with them.’

‘Rüdiger Pansch: Outstanding litigator, quick and efficient advisor.’

Key clients







Mohawk Group

Samsung Electronics


Schneider Electric

Trade marks Tier 4

Rospatt Osten Pross predominately handles contentious work and increasingly acts not only before German but also European courts. Representing clients at trade fairs and combating grey and parallel imports constitute key portions of the team's workload, while also handling design law matters. As an IP boutique with a solid patent law practice, the group is well equipped to guide clients through the entire spectrum of IP law. Hetti Hilge and Stephan von Petersdorff-Campen, who both handle a wide range of IP and competition law work, as well as patent lawyer Rüdiger Pansch are the main contacts.


‘Unusually broad and comprehensive expertise in the whole sector of industrial property rights. Large team with internal area-specialising.’

International outlook, internationally well connected, fast response, practice-oriented creative solutions, focusing on the essential points.’

Key clients




Lock & Lock

Marjo Leder & Tracht

Sick AG

Sulzer Mixpac

TAM Fashion


United Fashion Brands and Fashion FC Club

The firm: For more than 70 years, Rospatt Osten Pross (ROP) has been a specialist in patent litigation. The firm’s offices are located in Düsseldorf and Mannheim, the leading venues for patent litigation in Europe, but it operates in all of Germany and also sides litigation with colleagues in other countries. The firm handles more than 100 patent litigation cases each year in Germany alone.

Due to the high number of cases that ROP handles, the lawyers know the judges that decide patent infringement cases as well as validity cases. ROP also knows the ‘hot topics’ and their possible solutions. The knowledge and experience is spread among all members of the firm because ROP still has a manageable size which allows for a close exchange. ROP’s clients value the efficient and focused work.

International and national companies entrust ROP with their prestige litigation cases just as well as the day-to-day contingency patent work.

Areas of practice: One focus of ROP’s work is litigation. The lawyers secure the entrepreneurial basis of clients’ businesses by defending and enforcing their IP rights or warding off attacks from competitors. ROP appears before all German and European courts, and the German and international offices for trade mark and design protection. The firm is frequently assisted in its work by independent patent attorneys. ROP’s experience with multinational trial series and its good contacts with firms in other countries enable it to provide clients with multinational strategies and concepts at short notice whenever the need arises.

Stephan von Petersdorff-Campen, partner, has worked in all fields of industrial property rights and competition law. He is a specialist in trade mark and design law. Among his longstanding clients are Promat, Thonet, Paul Green and other companies from the fashion business.

Bernward Zollner, partner, is focused on patent litigation in a variety of technical fields, in particular medical technology, mechanical engineering, computer technology, and consumer goods. Among his longstanding clients are BASF and Arcelor Mittal.

Max von Rospatt, partner, has mainly international clients who are active in the fields of mechanics, electronics and mechanical engineering, pharmaceuticals, genetic engineering, chemistry and fine chemicals, digital entertainment electronics and medical engineering. He is a fierce litigator with a consequently strategic approach. Among his longstanding clients are Siemens, Unilin, Schneider Electric, Delphi and LG Electronics.

Thomas Musmann, partner, is specialised in patent and utility model law. His clients are companies with an international reputation in the field of automotive industry, chemical industry, pharmaceutics and biotechnology, medical engineering, computer technology, engineering. Among his major clients are Johnson & Johnson, Sanofi, AbbVie, Biogen and Porsche.

Henrik Timmann, partner, has been strategic advisor and lead counsel in major patent infringement proceedings relating to technical fields, such as mobile telecommunications, biotechnology, chemistry, computer hardware and software, electronics, pharmaceuticals, genetic engineering and optics. He also handles antitrust matters for an internet platform. Among his longstanding clients are Samsung Electronics, Rhodia (now part of Solvay), Thomson, Heidenhain, Posco and Reuter.

Rüdiger Pansch, partner, is focused on patent litigation in the fields of engine technology, mechanical engineering and motor vehicle construction, medical engineering and process engineering. For many years he has represented Ferrari in trademark, design and product piracy matters. He combats parallel and grey imports for Almirall and Schneider Electric.

Hetti Hilge, partner, advises and represents clients from Europe, the United States and Asia in patent and utility model litigation in all technical fields, unfair competition and trade mark cases. She was part of the team that successfully defended Samsung against Apple in a major patent dispute. Among her other clients are LG Electronics in patent cases involving standards and Ferrari in trade mark matters.

Department Name Email Telephone
Trade marks
Design protection
Product piracy
Unfair competition
Number of lawyers : 12
at this office : 11
Contacts : Stephan von Petersdorff-Campen
Contacts : Dr Bernward Zollner
Contacts : Max von Rospatt
Contacts : Thomas Musmann
Contacts : Dr Henrik Timmann
Contacts : Dr Rüdiger Pansch
Contacts : Hetti Hilge
Other offices : Mannheim