Mr Siegmund Gutman > Proskauer Rose LLP > Los Angeles, United States > Lawyer Profile

Proskauer Rose LLP
LOS ANGELES, CA 90067-3206
United States
Siegmund Gutman photo

Work Department

Life Sciences, Litigation and Patents


Siegmund (“Sige”) Gutman is chair of Proskauer’s Life Sciences Patent Practice, a partner in the Litigation Department, and a member of the Patent Law and Intellectual Property Groups.

Sige is an accomplished patent litigator, frequently representing clients before trial and appellate courts, as well as arbitration panels. In the life sciences area, his practice focuses on developing and executing market exclusivity and freedom-to-operate strategies, including patent office and FDA regulatory strategies, for leading biologics, pharmaceutical, biotechnology, and medical device clients. He has extensive experience successfully litigating biologic drug patent and Hatch-Waxman cases, and has frequently spoken and written about issues relating to biosimilars and generic drugs. Sige’s background combines a graduate degree in molecular and cell biology and biophysical chemistry with more than 20 years of industry experience, including serving as senior patent litigation counsel for Amgen, the world’s largest biotechnology company.

He advises clients on patent matters involving a wide range of technologies, including therapeutic proteins such as monoclonal antibodies, antibody-drug conjugates, nucleic acids, gene therapy, stem cells, expression systems, screening methodologies, purification processes, DNA microarrays, small molecules and polymer chemistry.

Lawyer Rankings

United States > Industry focus > Healthcare: life sciences

(Leading lawyers)

Siegmund GutmanProskauer Rose LLP

Proskauer Rose LLP fields a team of IP experts with distinct expertise in the life sciences sector. Its litigators defend its clients’ patents and trade secrets, with particular expertise acting on behalf of biologics and biosimilars. Reviews of post-grant products are another unique speciality of the firm. Los Angeles-based Siegmund Gutman is particularly noteworthy, combining deep experience in Hatch Waxman litigation with industry ties in the biotech sector. Vice-Chair Fangli Chen is known for her patent prosecutions and strategic advice and is based in Boston. Also key are New York-based transactional attorney Robert Cantone and managing partner Daryn Grossman.