X Corp. (f/k/a Twitter) (3:23-cv-06151) has filed a Northern District of California complaint against Adeia Inc.  and subsidiaries Adeia Guides Incorporated and Adeia Media LLC, seeking declaratory judgments of noninfringement for four patents related to social media, content display and recommendation, and advertising. This past August, Adeia Media filed a complaint in California state court alleging that after Twitter’s recent change in ownership, the company stopped making required quarterly payments stemming from an April 2019 license agreement between Twitter and the Adeia entities’ predecessors, which included an annual license fee of $3M (according to that state court complaint), “unless Adeia Media agrees to a material reduction of the amount required to be paid under the License Agreement”.