0001104659-26-089253.txt : 20260731 0001104659-26-089253.hdr.sgml : 20260731 20260731163023 ACCESSION NUMBER: 0001104659-26-089253 CONFORMED SUBMISSION TYPE: D PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: Rule 506(b) provides a "safer harbor" for a private offering FILED AS OF DATE: 20260731 DATE AS OF CHANGE: 20260731 EFFECTIVENESS DATE: 20260731 FILER: COMPANY DATA: COMPANY CONFORMED NAME: ClearSign Technologies Corp CENTRAL INDEX KEY: 0001434524 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823] ORGANIZATION NAME: 08 Industrial Applications and Services EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-592864 FILM NUMBER: 261228980 BUSINESS ADDRESS: STREET 1: 8023 E. 63RD PLACE, SUITE 101 CITY: TULSA STATE: OK ZIP: 74133 BUSINESS PHONE: (918) 500-7312 MAIL ADDRESS: STREET 1: 8023 E. 63RD PLACE, SUITE 101 CITY: TULSA STATE: OK ZIP: 74133 FORMER COMPANY: FORMER CONFORMED NAME: CLEARSIGN COMBUSTION CORP DATE OF NAME CHANGE: 20080507 D 1 primary_doc.xml 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