Patent litigation attorney
Brian Arnold
4 tracked appearances — 2 plaintiff · 2 defendant.
Specialty & background
I'll research this attorney's professional background before writing the summary.
Let me dig deeper on firm history, IPR experience, and notable outcomes.
Let me verify the tracked cases and any IPR/appeal activity.
Professional Summary — Brian G. Arnold (Brian Gregory Arnold, Cal. Bar No. 186007)
Specialty / focus. Arnold's patent work centers on consumer recovery and wellness hardware — percussive massage guns (the Hypervolt line), vibrating fitness rollers (the Vyper), and related electromechanical device patents. His docket is dominated by mechanical/electromechanical utility and design patents rather than software, telecom/standards, or pharma. Beyond district court patent litigation, his practice description at Lewis Brisbois covered IP litigation, complex commercial litigation involving IP, and IP transactions including licensing and portfolio sales; his state bar self-reported areas are Intellectual Property and Litigation, and he has also handled trademark matters (e.g., Hyper Ice, Inc. v. MC Innovations, LLC). This is not Wi-Fi/SEP or life-sciences patent work.
Side preference. He is best characterized as a patent-owner enforcer for an operating company, not an NPE/PAE prosecutor. The tracked 2 plaintiff / 2 defendant split reflects that posture: he sues on Hyperice's patents while also defending Hyperice when it is accused (e.g., Shenzhen Kelaisiman Trading Co., Ltd. et al. v. Hyper Ice, Inc. et al.). He does not appear to make a practice of representing non-practicing entities, and his plaintiff-side work is for a company that designs, manufactures, and sells the patented products.
Firm context. Arnold is currently in-house at Hyperice, Inc. (Irvine, California), listed by the State Bar under that company address and identified in professional directories as Associate General Counsel & Head of Intellectual Property. Before going in-house he was a litigation partner at Lewis Roca (Los Angeles/Glendale) and, prior to that, at Lewis Brisbois Bisgaard & Smith LLP (Los Angeles), where he was a member of the IP & Technology and Entertainment, Media & Sports practices. Many of the tracked Hyperice matters were handled while he was outside counsel at those firms.
Notable cases and PTAB/IPR experience. The most prominent result verifiable in the record is the U.S. International Trade Commission investigation in which he led Hyperice's Section 337 case and obtained a general exclusion order (December 2021) barring imports of infringing handheld percussive massage devices from China — a rare outcome, reported as occurring in fewer than 15% of ITC investigations. He also represented Hyperice before the PTAB, defeating an instituted-looking IPR petition by Sharper Image/MerchSource (August 2022) after strategically statutorily disclaiming six unasserted claims of the patent, with the Board finding the petitioner had not shown a reasonable likelihood of prevailing on any challenged claim. Other tracked matters include Hyper Ice, Inc. v. Therabody, Inc. (vibrating roller patent, filed 2020), Hyper Ice, Inc. v. JOICOM Corporation d/b/a RENPHO (asserting U.S. Patent No. 11,857,482, "Massage Device Having Variable Stroke Length"), Hyper Ice v. iFit, Hyper Ice, Inc. v. PlayMakar, and Hyper Ice, Inc. v. MerchSource, LLC. He appears to be an occasional rather than routine PTAB practitioner; note that in the 2024–2025 consolidated Central District cases, day-to-day filings were made by Miller Barondess and Lewis Brisbois counsel rather than Arnold personally, and Therabody filed a post-grant review against Hyperice patents.
Bar / education. Admitted to the State Bar of California on December 10, 1996; J.D., Loyola Law School (Los Angeles). He was recognized in The Best Lawyers in America for IP litigation (2021–2022) and patent litigation (2022).
Sourcing note: the foregoing is drawn from the California State Bar attorney profile, Lewis Brisbois and Lewis Roca/Womble Bond Dickinson press releases, Law360 attorney/firm pages, and federal court dockets. I did not locate a verified trial verdict or Federal Circuit appeal attributable to him, and the fourth tracked matter is untitled in the data provided, so its subject matter could not be confirmed. The name Brian Arnold is shared by other attorneys; this summary is limited to Brian G. Arnold of Hyperice, whom I could confirm as the same individual across the bar profile, firm press releases, and the Hyperice docket entries.
Firms
Roles
- in-house2
- In-House Counsel1
- in-house counsel1
Cases (4)
- π plaintiffHyper Ice, Inc. et al. v. JOICOM CORPORATION d/b/a RENPHOHyperice, Inc. · In-House Counsel
- π plaintiffHyper Ice, Inc. v. Therabody, Inc.in-house counsel
- Δ defendantShenzhen Kelaisiman Trading Co., Ltd. et al. v. Hyper Ice, Inc. et al.in-house
- Δ defendantUntitled casein-house