88438032
May 20, 2019
Feb 1, 2022
CLEARSIGN COMBUSTION CORPORATION
Active Trademark
Burners, namely, gas burners; primary gas burners for industrial use; boilers, namely, furnace boilers, heating boilers, fixed industrial boilers, and process heating boilers; furnaces; burner replacement kits for boilers, furnaces and process heaters, namely, burner replacement parts in the nature of gas nozzles and flame holders featuring multiple perforations
Environmental Control Apparatus