ClearSign Technologies Corporation Provides Third Quarter 2022 Update

TULSA, Okla., December 1, 2022 -- 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 provides an update on operations for the third quarter ended September 30, 2022.   “We have made good progress