Core Brands sued Jane Cheung and George Chan, Athome-products.com, AZ Electronics, AV Custom Pro for trademark infringement. Core Brands makes and sells audio, power management and control products under the brand names ATON, BlueBOLT, ELAN, Furman, Korus, Niles, Panamax, Proficient, SpeakerCraft, Sunfire, and Xantech through a network of authorized dealers. Among other things, Core Brands’ agreement with its authorized dealers prevents the dealers from selling Core Brands products to other retailers or resellers. The defendants are alleged to sell Core Brands products without authorization, of removing serial numbers from the Core Brands products, which voids the warranty, and of using Core Brands trademarks in advertising the products. Core Brands brings counts of trademark infringement, counterfeiting, false designation of origin, unfair competition, and tortious interference with contractual relations. The complaint does not made clear why the suit was brought in Massachusetts, as all parties are alleged to be California residents.