X0708 D LIVE 0001434524 ClearSign Technologies Corp 8023 E. 63RD PLACE SUITE 101 TULSA OK OKLAHOMA 74133 (918) 236-6461 DELAWARE ClearSign Combustion Corporation CLEARSIGN COMBUSTION CORP Corporation true Colin James Deller 8023 E. 63rd Place Suite 101 Tulsa OK OKLAHOMA 74133 Executive Officer Director Chief Executive Officer Brent Hinds 8023 E. 63rd Place Suite 101 Tulsa OK OKLAHOMA 74133 Executive Officer Chief Financial Officer Anthony DiGiandomenico 8023 E. 63rd Place Suite 101 Tulsa OK OKLAHOMA 74133 Director Louis J Basenese 8023 E. 63rd Place Suite 101 Tulsa OK OKLAHOMA 74133 Director Todd Gil Silva 8023 E. 63rd Place Suite 101 Tulsa OK OKLAHOMA 74133 Director Other Technology Decline to Disclose 06b false 2026-07-22 false true false 0 1770000 1770000 0 false 1 0 0 0 false ClearSign Technologies Corp /s/ Colin James Deller Colin James Deller Chief Executive Officer 2026-07-31