Eric Hagen > DLA Piper LLP (US) > Los Angeles (Century City), United States > Lawyer Profile

DLA Piper LLP (US)
LOS ANGELES, CA 90067-4704
United States
Eric Hagen photo

Work Department

Intellectual Property and Technology; Patent Litigation; Trademark and Copyright; Life Sciences; Media, Sport and Entertainment; Technology




Eric Hagen has more than 20 years’ experience representing domestic and multi-national clients in complex, high-stakes intellectual property disputes. He has successfully represented clients in a number of industries, including in the life sciences, technology, and media, sport and entertainment sectors.

Eric has served as a first and second-chair lawyer in jury and bench trials, as well as in arbitration and critical motion practice. He also has successfully guided cases through appeals before state and federal courts, including the US Supreme Court. In the courtroom, he has helped clients protect ground-breaking inventions and iconic brands and also avoid potentially ruinous liability. He is also a trusted advisor for several start-up companies in the development and protection of their intellectual property portfolios.


J.D., Pepperdine University School of Law; M.A., Dartmouth College; B.A., Biology, Pepperdine University

Lawyer Rankings

United States > Intellectual property > Patents: litigation (full coverage)

DLA Piper LLP (US)‘s patent litigation team is ‘an amazing group of exceptionally talented and hardworking lawyers.‘ The ‘great, dedicated and responsive‘ team has experience across the gamut of patent litigation, including matters in the district courts and the Federal Circuit, the PTAB and the ITC. Following the merger with Liner LLP on the West Coast in autumn 2017, the practice further bolstered its life sciences offering on the East Coast with the arrival of Michael Dougherty and Tony Pezzano in New York, both of whom joined from Hogan Lovells US LLP. Technology-related instructions remain a core focus for the group, with a major recent highlight including practice head Mark Fowler successfully defending Toshiba against Intellectual Ventures, averting infringement claims for ten patents covering semiconductor memory chips and consumer electronics. Clients also include Samsung Electronics, Nike and BASF. Other names to note are ‘outstanding strategist‘ John Guaragna in Austin, the ‘awesome‘ Steven Park in Atlanta, San Diego quartet Sean CunninghamErin GibsonRichard Mulloy and Stan PanikowskiStuart Pollack in New York, Carrie Williamson in Silicon Valley, Boston’s Larissa Bifano and Michael Strapp, and Paul Steadman and Matthew Satchwell in Chicago. Clayton Thompson and Jake Zolotorev joined in Silicon Valley from Feinberg Day LLP and Tamany Vinson Bentz joined the Los Angeles office from Venable LLP. Additionally, Eric Hagen arrived from McDermott Will & Emery LLPPatrick Park, also in Los Angeles, was promoted to of counsel, while former of counsel Vincent Crowley joined TiVo and John Garvey joined Noria Therapeutics. Lawrence McClure and Gerald Sekimura retired. Todd Paterson also left the firm.

McDermott Will & Emery LLP specializes in the life sciences and technology sectors. Recent standout examples include the representation of 23andMe in a patent and trademark infringement suit against competitor regarding patents on relatedness identification through DNA analysis; that matter was led by Silicon Valley duo William Gaede and Bhanu Sadasivan. In Washington DC, practice head Nicole JantziPaul Schoenhard and Ian Brooks secured a PTAB victory for Contour IP Holding in proceedings against GoPro, which had challenged camera patents and filed for appeal after being defeated in first instance. ZTE, Sandoz and Amgen are also clients. The team has recently seen a number of departures: Natalie BennettChristopher BrightJeffrey GarganoHersh MehtaKevin ShortsleKrista Vink Venegas and Brent Hawkins joined Morgan, Lewis & Bockius LLPEric Hagen joined DLA Piper LLP (US); and Rita Yoon left for Jones Day.

United States > Intellectual property > Trade secrets (litigation and non-contentious matters)

McDermott Will & Emery LLP‘s IP team in Silicon Valley regularly acts in trade secret disputes and advisory matters, with Daniel AlbertiFabio Marino and Judy Mohr the key names. Washington DC-based Natalie Bennett  is also recommended. Former practice head Eric Hagen joined DLA Piper LLP (US).