Acacia Research Corporation has initiated its first litigation campaign of 2020 with an Eastern District of Texas complaint filed by subsidiary Monarch Networking Solutions LLC against Charter Communications and Cisco (2:20-cv-00015). The NPE accuses Cisco of infringing four networking patents, developed at France Telecom, through the provision of certain switches, routers, and gateways, with additional infringement allegations as to Charter over two of those patents. Monarch discloses in the new complaint—“out of an abundance of caution”—that its ownership of the portfolio has been disputed, in a case before the Delaware Chancery Court, by Slingshot Technologies LLC.