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Brian Arnold


Los Angeles
310 282 2510 direct

Brian is a litigator who assists companies across a wide variety of industries assert their intellectual property rights and defend against accusations of infringement in trial and appellate courts nationwide.

For example, Brian recently represented a major corporate client in asserting its patent for a tool to clean automotive engine intake systems. Following a four-week trial, Brian and his trial team obtained jury verdict totaling $5.55 million for willful patent infringement, later enhanced to nearly $9 million.

Brian has litigated patent infringement matters involving a wide variety of other technologies, including medical devices, computer hardware and software, automotive technology, consumer products, electronics, and food products. He also represents clients in trademark, trade secrets, and copyright litigation throughout the country. Brian also facilitates patent portfolio sales, patent and trademark licensing, and trademark registration in various industries.

Brian has been selected as a Southern California Super Lawyer for Intellectual Property Litigation – an honor reserved for less than five percent of all attorneys – every year from 2014-2017.

Representative Experience:

Represented electronics manufacturer in a patent infringement action involving test sockets for integrated circuits

Represented firelog manufacturer in patent infringement and false advertising action involving artificial firelogs and related advertising

Represented automotive products distributor against accusations of copyright infringement

Represented toothbrush manufacturer in asserting, and defending against, patent infringement assertions

Defended health and wellness company against accusations of in trademark infringement action

Defended accused infringer in a patent infringement action involving an automated system and methods for flushing and refilling automotive braking systems

Represented medical device manufacturers in patent infringement action against key competitor, involving programmable injectors and systems for use with medical imaging devices and procedures

Represented medical device manufacturers in five patent infringement actions against a major competitor involving programmable injectors and systems for use with medical imaging devices and procedures

Represented casino game manufacturer, the accused infringer in patent infringement action involving slot machine technology  

Represented major international technology company in several patent infringement actions in district courts in California, Texas and Wisconsin and before the U.S. International Trade Commission, involving personal digital audio devices and computer hardware and software products

Member of the trial team that represented spine surgeon and inventor against a large medical device company involving claims of breach of various licensing agreements and patent infringement, culminating in a three-month jury trial

Represented accused infringer in case involving memory stick technology and patents for flash memory mass storage architecture

Represented accused infringers in patent infringement lawsuit brought by major competitor, involving pet food products

Represented accused infringer in district court and Court of Appeals for the Federal Circuit in a case involving computer-related imaging systems for printing presses


"Supreme Court to Address IPR Proceedings & Willful Infringement"
January 20, 2016

Co-Author, "Keeping Current: Medtronic, Inc. v. Mirowski Family Ventures, LLC, 134 S. Ct. 843 (2014)"
Business Law Today May 2014