Brian G. Arnold

I'll research this attorney before drafting.

Good initial data. Let me verify PTAB appearances, prior firm history, and any notable outcomes.

Brian G. Arnold — patent litigation summary

Focus and technology areas. Arnold's tracked patent work is concentrated in consumer wellness and recovery hardware — hand-held percussive massage devices (Hypervolt / Theragun lines), vibrating fitness rollers, thermal and contrast therapy, and multi-modal/wearable treatment devices. The patents at issue in the Hyperice matters are mechanical and electromechanical in nature (massage-head quick-release connectors, variable stroke-length drive mechanisms, coaxial energy-generator elements, pressure/heat housings), not software, standards, or life sciences. His own practice description while in private practice was broader: patent and IP litigation, complex commercial litigation involving IP, and IP transactions including licensing and portfolio sales. His tracked docket also includes trademark and contract matters, so the patent work sits within a general IP/commercial enforcement practice rather than a narrow technical niche.

Side preference and firm context. The structured record shows one plaintiff-side and one defendant-side appearance (2 total), and the web sources confirm he is a patent-owner-side enforcer rather than a defense-oriented or NPE-side litigator: he is Associate General Counsel and Head of IP at Hyperice, Inc. (Irvine, CA), and Hyperice is a practicing operating company asserting its own portfolio (through its wholly owned holding subsidiary, Hyperice IP Subco, LLC) against competitors, retailers, and importers. The single defendant-side entry arises from Therabody's competing infringement action and counterclaims against Hyperice, so the "both sides" split reflects the same two-party corporate dispute rather than a mixed book of business. Before going in-house, he was a patent litigation partner at Lewis Brisbois Bisgaard & Smith (Los Angeles, per the firm's 2020 and December 2021 releases) and at Lewis Roca Rothgerber Christie (per his 2022 PTAB press release and quoted commentary); a January 2024 Hyperice/BusinessWire release states he was previously a partner at several firms "including Kirkland & Ellis LLP and, most recently, Lewis Roca." The ordering of Kirkland relative to Lewis Brisbois is not clearly established in the sources I could verify.

Notable matters, outcomes, and PTAB experience. The most prominent verifiable results, all on Hyperice's behalf: (1) a U.S. International Trade Commission general exclusion order (December 2021) blocking imports of certain hand-held massage guns from China, described in firm coverage as led by Arnold; (2) a PTAB win in 2022 in which the Board declined to institute Sharper Image/MerchSource's IPR against a Hyperice Hypervolt patent — achieved by statutorily disclaiming six non-asserted claims of an 18-claim patent to narrow the challenge, which the firm characterized as removing the obstacle to the parallel C.D. Cal. infringement case; and (3) an earlier Hyperice v. Theragun (2020) vibrating-roller suit, which resolved on confidential terms (a separate Therabody suit against Hyperice ended with Hyperice discontinuing the accused product). The consolidated Hyperice v. Therabody litigation in the Central District of California remains the headline matter and is ongoing; Therabody has filed post-grant review petitions, and no merits verdict or Federal Circuit outcome in that dispute is verified. On PTAB experience: he is on record as patent-owner counsel in IPR matters and describes Board practice as part of his work, but the two-appearance tracked dataset does not show a broad docket footprint, and I could not independently verify a larger IPR/PGR counsel-of-record history.

Bar and education. Admitted to the California State Bar on December 10, 1996 (Bar No. 186007); J.D., Loyola Law School, Los Angeles. He was recognized in Best Lawyers in America for IP litigation (2021, 2022) and patent litigation (2022).