AT&T (6:21-cv-00088), Charter Communications (6:21-cv-00089), Crown Castle (6:21-cv-00090), Deutsche Telekom (T-Mobile) (6:21-cv-00092), DISH Network (6:21-cv-00093), and Windstream (6:21-cv-00088) have been sued in the Optic153 LLC campaign, each accused of infringing six optical networking patents through the provision of optical amplification in their various networks and systems. Each complaint identifies equipment within those networks provided by Cisco, with the pleadings against AT&T and Windstream also calling out Fujitsu devices—all without naming Cisco or Fujitsu as a defendant.
Optic153 LLC, a subsidiary of Equitable IP Corporation, has sued Comcast (6:20-cv-00483) and Verizon (6:20-cv-00484) in the Western District of Texas over six optical networking patents, targeting the optical amplification in various networks and systems separately provided by either of the defendants. The NPE began this campaign in 2018 in the District of Delaware, with cases against II-VI (Finisar), FS.com, and Lumentum Operations, each subsequently dismissed with prejudice, before turning—as many plaintiffs have—to the Western District of Texas. There, cases are active in early stages against Fiberlabs, Fiber-Mart.com, and Thorlabs, the last of which has contested the propriety of venue in West Texas.