ClearSign Technologies Corporation, founded in 2008 and headquartered in Tulsa, Oklahoma, is a company focused on inventing and refining products and technological solutions. Operating in both the United States and the People's Republic of China, its mission is to optimize the operational effectiveness, energy consumption, and safety of industrial and commercial systems, while simultaneously decreasing harmful emissions and overall expenses. The company's key product lines include the ClearSign Core Burner Technology, an advanced system combining an industrial burner with a specialized porous ceramic or metallic flame stabilizing structure. For the refinery sector, the ClearSign Core Plug & Play technology offers a straightforward, direct replacement for existing process heaters. Additionally, the ClearSign Eye Flame Sensor provides an electronic flame detection system tailored for various industrial applications. ClearSign also extends its offerings to include specialized ClearSign Core Boiler Burners and ClearSign Core Flaring Burners technologies. ClearSign Technologies serves a broad spectrum of industries, encompassing energy, institutional, commercial and industrial boiler operations, chemical manufacturing, and petrochemical processing. The organization was previously known as ClearSign Combustion Corporation before rebranding to ClearSign Technologies Corporation in November 2019.