ClearSign Technologies (CLIR) SEC Filings: History & Chart

ClearSign Technologies Corporation(CLIR)

Industrial - Pollution & Treatment Controls · Tulsa, OK

$3.59+0.29 (+8.79%)

Delayed quote: Oct 6, 2026, 11:00 AM EDT

About ClearSign Technologies Corporation

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.

Tulsa, OK

16 employees

www.clearsign.com

Industrials / Industrial - Pollution & Treatment Controls

Sector: Industrials
Industry: Industrial - Pollution & Treatment Controls
CEO: Colin James Deller

View full financials

Form	Filing Date	Accepted	Document
4	Oct 2, 2026	Oct 2, 2026	View filing
4	Oct 2, 2026	Oct 2, 2026	View filing
4	Oct 2, 2026	Oct 2, 2026	View filing
4	Oct 2, 2026	Oct 2, 2026	View filing
8-K	Sep 14, 2026	Sep 14, 2026	View filing
8-K	Aug 20, 2026	Aug 20, 2026	View filing
10-Q	Aug 14, 2026	Aug 14, 2026	View filing
3	Aug 11, 2026	Aug 11, 2026	View filing
8-K	Aug 11, 2026	Aug 11, 2026	View filing
D	Jul 31, 2026	Jul 31, 2026	View filing
SC 13G/A	Jul 24, 2026	Jul 24, 2026	View filing
4	Jul 24, 2026	Jul 24, 2026	View filing
8-K	Jul 23, 2026	Jul 23, 2026	View filing
S-8	Jul 6, 2026	Jul 6, 2026	View filing
8-K	Jul 6, 2026	Jul 6, 2026	View filing
424B5	Jul 6, 2026	Jul 6, 2026	View filing
4	Jul 2, 2026	Jul 2, 2026	View filing
4	Jul 2, 2026	Jul 2, 2026	View filing
4	Jul 2, 2026	Jul 2, 2026	View filing
8-K	Jun 18, 2026	Jun 18, 2026	View filing
8-K	Jun 9, 2026	Jun 9, 2026	View filing
8-K	Jun 1, 2026	Jun 1, 2026	View filing
424B5	Jun 1, 2026	Jun 1, 2026	View filing
424B5	May 28, 2026	May 28, 2026	View filing
8-K	May 28, 2026	May 28, 2026	View filing
8-K	May 21, 2026	May 21, 2026	View filing
10-Q	May 15, 2026	May 15, 2026	View filing
ARS	Apr 28, 2026	Apr 28, 2026	View filing
DEFA14A	Apr 28, 2026	Apr 28, 2026	View filing
DEF 14A	Apr 28, 2026	Apr 28, 2026	View filing

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