<SEC-DOCUMENT>0001104659-21-109836-index.html : 20210826
<SEC-HEADER>0001104659-21-109836.hdr.sgml : 20210826
<ACCEPTANCE-DATETIME>20210826164243
ACCESSION NUMBER:		0001104659-21-109836
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210824
FILED AS OF DATE:		20210826
DATE AS OF CHANGE:		20210826

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Pate Bruce Alan
		CENTRAL INDEX KEY:			0001765385

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35521
		FILM NUMBER:		211212968

	MAIL ADDRESS:	
		STREET 1:		23235 WALLING RD.
		CITY:			GEYSERVILLE
		STATE:			CA
		ZIP:			95441

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ClearSign Technologies Corp
		CENTRAL INDEX KEY:			0001434524
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		12870 INTERURBAN AVENUE SOUTH
		CITY:			SEATTLE
		STATE:			WA
		ZIP:			98168
		BUSINESS PHONE:		(206) 673-4848

	MAIL ADDRESS:	
		STREET 1:		12870 INTERURBAN AVENUE SOUTH
		CITY:			SEATTLE
		STATE:			WA
		ZIP:			98168

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CLEARSIGN COMBUSTION CORP
		DATE OF NAME CHANGE:	20080507
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>tm2125932d3_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
Document 1 - file: tm2125932d3_4seq1.html

Document 1 - RAW XML: tm2125932d3_4seq1.xml

</DOCUMENT>
</SEC-DOCUMENT>