Lisa Partain

Practice Summary — Lisa Partain (Irell & Manella LLP)

Lisa Partain is a patent litigator at Irell & Manella LLP in Los Angeles (Century City). Her tracked docket is limited to a single plaintiff-side appearance at Irell (1 plaintiff / 0 defendant), and her practice profile lists patent litigation, intellectual property, and patent prosecution. Law360's firm directory shows her on three matters: St. Jude Medical v. Edwards Lifesciences Corp. (C.D. Cal., 2004, patent) and a companion St. Jude Medical matter, plus an earlier copyright case, Aiken & Associates v. Market Scan Inf. Sys. (C.D. Cal., 1997). The St. Jude/Edwards dispute concerned heart-valve annuloplasty-ring technology, pointing to medical-device litigation — consistent with Irell's recognized strength in life-sciences patent disputes — though the tracked-case data itself does not name the matter or specify technology. Her appearances, such as they are documented, have been for plaintiffs; the sample is too small to infer a durable side preference, and no defense-side work is recorded.

Irell & Manella is a top-tier IP litigation firm (Chambers Band 1 for patent litigation, with noted PTAB and ITC experience), but no source indicates that Partain herself appears regularly in IPR/PGR proceedings; her known docket predates the AIA. Prior-firm history is not well documented in available sources, and directories conflict on her current title (associate vs. partner) — both cite Irell & Manella as her firm. Bar/education: admitted to the State Bar of California in 1995; registered to practice before the USPTO; B.A., Westmont College (1989); J.D., Southwestern University School of Law (1995) — per Martindale, Lawyers.com, and the California Bar.