ClearSign Technologies Corporation designs and develops products and technologies to enhance emission and operational performance, energy efficiency, emission reduction, safety, and overall cost-effectiveness of industrial and commercial systems in the United States, the People's Republic of China, and Hong Kong. The company's technologies include ClearSign core burner technology consists of an industrial burner body and a downstream porous ceramic or metal flame stabilizing structure; ClearSign core process burner technology that provides a direct burner replacement for traditional refinery process heaters; ClearSign core boiler burner technology; ClearSign core flaring burners that can be used individually, or in combination, to provide a flare product with extremely low nitrogen oxide emissions; and ClearSign eye flame sensor, an electrical flame sensor for industrial applications. It serves energy, institutional, commercial and industrial boiler, chemical, and petrochemical industries. The company was formerly known as ClearSign Combustion Corporation and changed its name ClearSign Technologies Corporation in November 2019. ClearSign Technologies Corporation was incorporated in 2008 and is headquartered in Tulsa, Oklahoma.

Period	fcf
2016-12-31	-$9.73M
2017-12-31	-$8.68M
2018-12-31	-$8.89M
2019-12-31	-$7.32M
2020-12-31	-$6.16M
2021-12-31	-$6.92M
2022-12-31	-$5.16M
2023-12-31	-$3.43M
2024-12-31	-$4.59M
2025-12-31	-$4.84M

	A	B	C	D
1	Symbol	Price	Change	Volume
2	CLIR	$4.56	+2.47%	0.04M
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