The team at Vossius & Partner utilises its global network to advise AI, bio-pharmaceutical, medical device, green technology and e-mobility clients, including start-ups, on patent prosecutions, oppositions, revocations and infringement proceedings. Arnold Asmussen specialises in medical and automotive engineering, and is well versed in utility models, while Elard Schenck Zu Schweinsberg advises on engineering, material science and medical technology patents; Raphael Salzer also advises on the latter. Both Hans-Rainer Jaenichen and Jürgen Meier assist biotech and pharmaceutical clients, and Natalia Berryman provides clients with FTO and patentability opinions. Ju Min Kim left the firm for df-mp Patentanwälte Rechtsanwälte PartG mbB in May 2025.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Vossius' team is excellent, working very efficiently.’
- ‘Vossius has a mixed attorney-at-law and patent attorney team, which is invaluable in building the right litigation team. They are also frequently involved in high-stakes patent litigation, demonstrating their immense capabilities.’
- ‘Great people that are knowledgeable, experienced, responsive and a pleasure to work with.’
- ‘The relationship with Vossius is a very long-lasting one. Working with them, I especially appreciate their high professionalism, the deep knowledge of IP matters, especially in the field of patents and particularly patent litigation, with them being capable of handling and coordinating international patent litigation.’
- ‘The Vossius patent team is very highly qualified and the different lawyers are specialised in all possible areas from licensing, mechanical and electronics, always with a very thorough and practical approach, and being able to understand the client’s needs and get directly to the point, not only in applying German law but also with a more European perspective.’
- 'We were 100% successful so far in litigation with them, so are very happy. They are knowledgeable, extremely responsive, to the point in all their communications and easy to work with.'
Key clients
- 3M/Solventum Corporation
- Boston Scientific Corporation
- CRISPR Therapeutics
- F. Hoffmann-La Roche AG
- Hitachi Energy
- IMC Group
- Max-Planck-Gesellschaft
- Newron Pharmaceuticals S.p.A.
- Nippon Steel Corporation
- ResMed
- Roche Group
- Sartorius
Work highlights
Represented CRISPR Therapeutics AG in opposition and appeal proceedings related to the use of CRISPR-Cas9 for eukaryotic genome engineering.
Managed ZTE's global patent portfolio in the field of 5G communication, and represented it in infringement proceedings.
Represented Nestlé in invalidity and infringement proceedings, patent litigation proceedings and assisted it with portfolio management of EP applications.
Other key lawyers
Natalia Berryman; Raphael Salzer; Arnold Asmussen; Christoph Eisenmann; Christian Sandweg; Rainer Viktor; Thomas Schwarze; Elard Schenck zu Schweinsberg; Hans-Rainer Jaenichen; Jürgen Meier; Andreas Heiseke; Christian Schlörb; Dirk Harmsen; Peter Hoecherl