Lenovo (Motorola Mobility) has opened up another front in the set of disputes with InterDigital, Inc. (IDCC), pleading restraint of trade and monopolization claims under both Sections 1 and 2 of the Sherman Act, as well as of breach of contract, in a new District of Delaware complaint (1:20-cv-00493). Last August, IDCC sued Lenovo in the United Kingdom, alleging infringement of four UK patents, each of which the plaintiff characterizes as essential to either 3G or 4G standards; one day later, IDCC sued Lenovo in the District of Delaware, alleging infringement by cellular-enabled Motorola and Lenovo devices practicing certain standards (e.g., HSUPA, LTE, and WCDMA) of eight US wireless communications patents. In the US case, Lenovo has challenged six of the patents in an Alice motion that remains pending before District Judge Leonard P. Stark.