TULSA, Okla., October 23, 2025 -- ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and safety, and support the use of cleaner fuels including hydrogen, today announces it received an engineering order for a fourth low-emission retrofit flare

Planned Retrofit of Two Process Heaters at a California refinery Underscores Growing Adoption of ClearSign's Higher Efficiency, Low-Emission Combustion Solutions TULSA, OK / ACCESS Newswire / October 7, 2025 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and safety, and

Petrochemical Client Requesting Performance Mapping for Future Deployment  TULSA, Okla., September 23, 2025 -- ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and safety, and support the use of cleaner fuels including hydrogen, today announces that it has

Project Comprised of 36 ClearSign Core™ Process Burners in One Heater                                                                       TULSA, Okla., September 17, 2025 -- ClearSign Technologies Corporation (Nasdaq:

TULSA, Okla., August 7, 2025 -- ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as a fuel and enhance safety while dramatically reducing emissions, today announced that the Company has received a purchase

Company Implementing M Series Technology for Next Generation of Boiler Burners TULSA, Oklahoma, June 3, 2025 – ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as a fuel and enhance safety while dramatically