ClearSign Combustion Corporation ClearSign Announces Completion of First Enclosed Ground Flare Project Establishes Duplex Technology as best-in-class emissions control solution in $400 million potential domestic market Mon, 22 Jan 2018 16:05:00 -0500 ClearSign Announces Request to Withdraw S-1 Registration Statement Company to review alternate funding and strategic options Wed, 06 Dec 2017 09:20:00 -0500 ClearSign Receives Multi-Unit Order from Major Eastern Mediterranean /Middle East Refiner Operator Orders Multiple of Duplex Plug & Play™ Mon, 04 Dec 2017 08:00:00 -0500 Qualification Tests of Duplex™ Technology Ordered by ExxonMobil Successfully Completed Evaluation Conducted at ClearSign's State-of-the-Art R&D Seattle Facility Mon, 27 Nov 2017 08:00:00 -0500 ClearSign Asia, LTD Formed Announces Letter of Intent with Largest Conglomerate in China for Investment, Accelerated Market Access and Support Mon, 20 Nov 2017 08:00:00 -0500