SafeCast Limited has added a case against Microsoft (6:22-cv-00983) to the litigation campaign that it began this summer with separate Western District of Texas suits filed against Alphabet (Google), AT&T, DISH Network, HBO, NBCUniversal, Paramount Global (f/k/a ViacomCBS), and Verizon. Targeted with the single patent-in-campaign is the provision of the Xandr advertisement platform. SafeCast pleads willful infringement, noting that when “Microsoft purchased Xandr from AT&T” in June 2022, it picked up one of Xandr’s “core patents”, which allegedly cites the patent-in-campaign as prior art.