Last year the Overhead Door Corp. and its Genie Co. subsidiary won an ITC determination of patent infringement that could crimp The Chamberlain Group’s competing garage door opener business.

Illinois-based The Chamberlain Group, maker of Craftsman, LiftMaster and other garage door operating systems, sought to return the favor last week, seeking $60 million for patent infringement from Texas-based Overhead Door in an Eastern District of Texas trial.