Eisenführ Speiser
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Eisenführ Speiser handles international patent litigation campaigns for major national and international corporations in the fields of mobile communication and audio coding, and the team also advises on the enforcement of Unitary Parents and European Parents before the UPC. Lars Birken is involved in the judicial and extrajudicial enforcement of technology IP rights and in patent prosecutions for mechanical engineering, medical technology, and AI products. Fabian Fegers advises start-ups and venture capitalists, while Stefan Wiethoff drafts, prosecutes and defends German, European and international patents. Holger Veenhuis covers all areas of IP rights. The offering of the team was recently expanded by Martin Nohlen and Andre Guder, who joined the team in January 2025 from Uexküll & Stolberg.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘The professionals we work with at Eisenführ Speiser stand out for their technical depth, reliability and thoughtful approach to every matter. They are not just service providers but trusted advisors who understand the nuances of medtech innovation.'
Key clients
- Koninklijke Philips N.V.
- SONY Computer Entertainment America Inc.
Work highlights
Coordinated filing activities, including oppositions, before various patent offices for ZF Friedrichshafen AG.