ClearSign Announces Final Regulatory Approval for Collaborative Project with World Oil to Demonstrate Duplex™ as a Superior Ultra-Low Emissions Solution - PRNewswire
ClearSign Announces Final Regulatory Approval for Collaborative Project with World Oil to Demonstrate Duplex™ as a Superior Ultra-Low Emissions Solution PRNewswireSEATTLE, Feb. 5, 2019 /PRNewswire/ -- ClearSign Combustion Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial ...