<SEC-DOCUMENT>0001144204-18-058904-index.html : 20181113
<SEC-HEADER>0001144204-18-058904.hdr.sgml : 20181113
<ACCEPTANCE-DATETIME>20181113061530
ACCESSION NUMBER:		0001144204-18-058904
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20181113
DATE AS OF CHANGE:		20181113
EFFECTIVENESS DATE:		20181113

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CLEARSIGN COMBUSTION 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

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35521
		FILM NUMBER:		181174742

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>tv506962_defa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: tv506962_defa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>image_001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: image_001.jpg

</DOCUMENT>
</SEC-DOCUMENT>