Quinn Emanuel Urquhart & Sullivan, LLP has outstanding expertise in patent litigation, particularly across the chemistry, pharmaceuticals, biotechnology, life sciences, mobile communications and technology sectors. In combination with the firm's strong US practice, the practice is ideally positioned for cross-border matters and can also draw on strong trade secret knowledge. Led by litigator Marcus Grosch, the team handles infringement, nullity and opposition proceedings and regularly acts before all German courts, up to the Federal Court of Justice, as well as European courts such as the UPC. Johannes Bukow and Katrin Gerstenberg often assist with national and cross-border disputes relating to SEP and FRAND. Automotive, IT and life sciences are part of Jesko Preuß's expert areas.
Legal 500 Editorial commentary
- Profile
Testimonials
Collated independently by Legal 500 research team.
- 'The firm operates at the center of IP litigation in Germany. They know all the judges, all the lawyers and all the arguments.'
- 'Jesko Preuß is an extremely capable lawyer, a tireless worker who has developed a deep understanding of our technology, which he combines with a deep understanding of applicable laws and procedures.'
'Marcus Grosch – unique presentation style, in other legal systems could be compared to a barrister, can adapt exceptionally well to the decisive panel.'
'Andreas Duensing – thorough and fast processing of transactions, high reaction speed.'
'The team is very broadly positioned and flexible. One has the impression that important projects can be completed to a high standard even at short notice. These characteristics make the patent law team unique in Germany.'
'Marcus Grosch is the boss, a role model and maybe even a bit of an idol as a lawyer.'
'Jesko Preuß knows all the details: strategic thinker, one of the best.'
Key clients
- Dexcom
- Tesla
- Netflix
- Godo Kaisha IP Bridge 1
- Google LLC
- Qualcomm Inc.
- Voxer IP LLC
- IPCom
- Niantic Inc.
- ITM Isotope Technologies Munich SE
Work highlights
- Representation of DexCom in the global dispute against Abbott in Germany and in the US in a number of infringement and invalidity proceedings, both on the plaintiff and defendant side.
- Representation of Tesla in a series of patents on the defendant side and conducting parallel validity proceedings concerning, among other things, technologies of chip control, data transmission and resource management.
- Representation of Netflix as defendant in various patent infringement proceedings against Broadcom/Avago.
Lawyers
Hall of fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Johannes Bukow
Next generation partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Katrin Gerstenberg
Jesko Preuß
Practice head
Marcus Grosch
Other key lawyers
Johannes Bukow; Jérôme Kommer; Jesko Preuß; Katrin Gerstenberg; Michael Krenz; Andreas Hahne; Andreas Duensing; Jan Axtmann; Marlen Yan