Stephan Neuhaus

Dr Stephan Neuhaus


Stephan is a patent litigator with more than a decade of experience in protecting his international and national client’s market position with a specific focus on the life sciences and chemical industries as well as the telecommunications and the engineering sector. 

Stephan coordinates parallel patent infringement and revocation proceedings in the major European countries, helping clients devise effective cross-border litigation strategies.

He conducts main action infringement proceedings, preliminary injunction proceedings and inspection proceedings at the German district and appellate courts as well as nullity actions at the German Federal Patent Court and the Federal Supreme Court. His strategic advice covers questions regarding the new Unified Patent Court and the European Patent with unitary effect. Stephan is recognized as “a known quantity in the life sciences and telecoms spheres” (IAM Patent 1000, 2020) and as “life sciences sage who has proved his mettle in a plethora of nullity actions before the Federal Patent Court and the Federal Court of Justice” (IAM Patent 1000, 2018). His “adroitness in presenting strong life sciences arguments is much-appreciated by those who rely on him in court” (IAM Patent 1000, 2019). Clients also praise his “unbeatable rhetoric skills in court and great personality” (IP Stars 2017). They appreciate his “written submissions of top quality” and his “excellent all-round knowledge of law and business” (IP Stars, 2016).


Representative matters

A global pharmaceutical and healthcare company on numerous preliminary injunction, main action, and nullity proceedings against numerous generics regarding the company’s chemotherapy drug Alimta® (pemetrexed) including winning precedent setting appeal regarding equivalent patent infringement in Germany (previous firm experience).

A major Swiss pharmaceutical company on pan-European strategy and coordinating pan-European enforcement of patents against market entry of biosimilar products (previous firm experience).

US biotechnology innovator on strategy enforcing patents protecting biological drugs against biosimilar competition including coordinating cross-border proceedings and conducting preliminary injunction proceedings in Germany (previous firm experience).

Conducting inspection/evidence gathering proceedings, specifically for inspection of specific sections of the pharmaceutical dossier or for inspection of an antibody manufacturing process at defendants premises (previous firm experience).

Published Work

Stephan Neuhaus, Anm. zu BGH - Cerdioxid, GRUR 2021, 1043, 1048
Neuhaus is a known quantity in the life sciences and telecoms spheres, and regularly conducts parallel litigations across key European jurisdictions.
IAM Patent 1000, 2020
Stephan Neuhaus [is] a quadrilingual litigator whose adroitness in presenting strong life sciences arguments is much-appreciated by those who rely on him in court.
IAM Patent 1000, 2019


  • LMG Europe Rising Stars Award “Intellectual Property”, 2019



English, French, German
A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.