ClearSign Technologies Corporation

ClearSign Technologies Corporation designs and develops products and technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial systems, including operational performance, energy efficiency, emission reduction, safety, the use of hydrogen as a fuel and overall cost-effectiveness. Our patented technologies, embedded in established OEM products as ClearSign Core ™ and ClearSign Eye ™ and other sensing configurations, enhance the performance of combustion systems and fuel safety systems in a broad range of markets, including the energy (upstream oil production and down-stream refining), commercial/industrial boiler, chemical, petrochemical, transport and power industries. For more information, please visit www.clearsign.com.

Current securities

1. Regulation FD DisclosureSep 14, 2026
2. Results of Operations and Financial Condition · Regulation FD DisclosureAug 20, 2026
3. 10-Q filingAug 14, 2026
4. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · Regulation FD DisclosureAug 11, 2026
5. SCHEDULE 13G/A filingJul 24, 2026