Independent Source Testing Confirms Emissions Levels Below Guarantee TULSA, Okla., May 22, 2024 /PRNewswire/ -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, announces that the five burner heater has had a successful start-up and is now in

TULSA, Okla., April 30, 2024 /PRNewswire/ -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today announces the receipt of two purchase orders to complete the detailed engineering of burners for the fitting of two additional process

TULSA, Okla., February 21, 2024 -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, announces that ClearSign’s partner California Boiler has received a letter of intent for four boilers to be fitted with the