Brian P. Biddinger

Brian P. Biddinger — Quinn Emanuel Urquhart & Sullivan (New York)

Practice focus. Biddinger is a patent trial lawyer whose practice spans district court, the International Trade Commission, and the PTAB. His firm bio describes work across healthcare technology, medical devices and diagnostics, network security, automotive, wireless communications, consumer products, video games, and microprocessors — a range consistent with a mechanical engineering background (Lehigh, B.S. Mechanical Engineering) rather than a narrow technical niche. Tracked matters and firm-listed clients reflect that breadth: diagnostics and life-sciences tools (Tempus AI, Guardant Health, Exact Sciences, DexCom, Becton Dickinson, AbCellera/University of British Columbia), standard-essential-adjacent wireless and semiconductor work (Caltech's Wi-Fi error-correction patents, MediaTek, Samsung, Transmeta/Intel), and consumer software (Activision Blizzard, TikTok/Twitter in Virtual Creative Artists cases).

Side preference. He works both sides rather than favoring plaintiffs or defendants. The tracked data shows one plaintiff-side and one defendant-side appearance in the same dispute — Tempus AI, Inc. v. Guardant Health, Inc. — with Quinn Emanuel representing Tempus AI both as plaintiff in the Northern District of California (3:25-cv-06622) and as defendant in Guardant's Delaware action (1:24-cv-00687). His broader record is genuinely mixed: defense verdicts for Gentex, Becton Dickinson/Nova Biomedical, RouteOne, and Samsung, alongside plaintiff verdicts for PureWick, Caltech, Praxair, and Massachusetts Eye & Ear. Client lists are dominated by operating companies and universities rather than NPEs/PAEs.

Firm context and notable outcomes. He joined Quinn Emanuel as a partner in its New York office in January 2017, arriving from Ropes & Gray, where he was also a partner. Firm bio results include a $28M+ jury verdict for PureWick Corp. against Sage Products (D. Del. 2022) finding willful infringement of female external catheter patents — post-trial, JMOL was denied and $26.2M lost profits plus a 6.5% ongoing royalty were upheld, though enhanced damages and an injunction were denied. He is also listed among the Quinn team that obtained the $1.1B Caltech verdict against Apple and Broadcom (C.D. Cal. 2020) on Wi-Fi coding patents; firm press materials credit other partners (Briggs, Asperger, Johnson, Price) as leads on that matter, and the Federal Circuit later affirmed liability but vacated the damages award and ordered a retrial, so individual credit should be treated cautiously. Other firm-listed results include a defense verdict for Becton Dickinson/Nova Biomedical against Therasense, a $250M settlement for Transmeta against Intel, and defense wins for Gentex and RouteOne.

PTAB/IPR. Firm materials state he has argued multiple times before the PTAB and has "particular expertise coordinating patent office challenges with pending district court litigation," including IPR and ex parte reexamination work; in the Samsung/Affinity Labs matters, PTAB invalidation of the asserted patents led to dismissal of the district court cases. Public docket records also show him as counsel in the AbCellera/Bruker and Illumina/Element Biosciences disputes and in Element Biosciences' Delaware miscellaneous action, though those filings do not by themselves establish IPR participation.

Bar/education. Fordham University School of Law (J.D., cum laude, 2002; Order of the Coif; Senior Articles Editor, Fordham Law Review); admitted in New York and California and before the Federal Circuit and First Circuit, among other courts. (Sources conflict on admission dates — Super Lawyers lists a 2007 New York admission, while a California bar number in court filings suggests earlier admission; the discrepancy is not resolved by available public sources.)