BLACKBIRD TECH LLC v. ELB ELECTRONICS, INC., decided July 16, 2018

U.S. Patent No. 7,086,747, directed to energy efficient lighting retrofit.  In one embodiment, a housing with an attachment surface and opposite illumination surface is sized to be installed to an existing ballast cover (page 3). The claim recites “a fastening mechanism for securing the attachment surface of the lighting apparatus to the illumination surface” (pages […]