Dr. Christian E. Mammen

Dr. Christian E. Mammen

Partner, San Francisco

Email chris.mammen@​hoganlovells.com

Phone +1 415 374 2325

Fax +1 415 374 2499

Practice groupIntellectual Property

Chris has been litigating patents and technology cases since the start of the first dot.com boom in the late 1990s. His experience spans cellular communications, microchips, HD video compression, high-temperature superconductors, bio-pharmaceuticals, and even an early patent for online pizza-ordering.

He has led both large and small litigation teams, and has substantial first-chair experience, including arguing Markman hearings, arguing summary judgment hearings, taking and defending key technical and patent law expert depositions, and arguing before the U.S. Court of Appeals for the Federal Circuit.

In addition to his deep litigation experience, Chris is an accomplished scholar. He holds a doctorate in law from Oxford University, and has held visiting faculty positions at UC Hastings, Berkeley Law, Stanford Law School and Oxford University. In 2011, the Federal Circuit's en banc majority in Therasense v. Becton Dickinson cited Chris' scholarship on the inequitable conduct defense in patent litigation. In February 2013, Chris squared off against rockstar Stanford Law Professor, Mark Lemley, in an Oxford-style debate on patent reform.

Drawing on his years of experience teaching civil procedure, evidence, e-discovery, and advanced patent law, Chris is a creative strategist. He has recently marked wins for our clients on a variety of unconventional issues. Before joining Hogan Lovells in 2012, Chris practiced for more than fifteen years in the San Francisco Bay Area with several nationally-known law firms.

Chris serves on the Advisory Board for the Berkeley Center for Law and Technology, and is a faculty member of UC Hastings' Innovation Law Institute. Before entering practice, Chris clerked for the Honorable Robert R. Beezer on the U.S. Court of Appeals for the Ninth Circuit.

Awards and recognitions


Intellectual Property: Patent Litigation: Full Coverage
Legal 500 US

Education and admissions


D.Phil., University of Oxford, 2001

J.D., Cornell Law School, magna cum laude, 1993

B.A., Trinity University, magna cum laude, 1990


Board member, Advisory Board for the Berkeley Center for Law and Technology

Member, American Intellectual Property Law Association

Member, Federal Circuit Bar Association

Bar admissions and qualifications



Court admissions

U.S. Court of Appeals, Federal Circuit

U.S. Court of Appeals, 9th Circuit

U.S. District Court, Central District of California

U.S. District Court, Northern District of California

U.S. District Court, Southern District of California

U.S. District Court, Western District of Washington

U.S. Supreme Court

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