Quad City Patent, LLC, a recently formed Illinois entity, has filed suit against Zoosk (3:20-cv-01996), alleging infringement of a single patent generally related to matching users based on automatic evaluations of offers and requests. The accused products are Zoosk’s online dating applications, including the Facebook Dating app, iPhone Dating app, Android Dating app, and Zoosk Messenger app. At issue are matching services featured on the apps.