<SEC-DOCUMENT>0001571049-17-008483-index.html : 20171109
<SEC-HEADER>0001571049-17-008483.hdr.sgml : 20171109
<ACCEPTANCE-DATETIME>20171109162525
ACCESSION NUMBER:		0001571049-17-008483
CONFORMED SUBMISSION TYPE:	S-1
PUBLIC DOCUMENT COUNT:		8
FILED AS OF DATE:		20171109
DATE AS OF CHANGE:		20171109

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

	FILING VALUES:
		FORM TYPE:		S-1
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-221467
		FILM NUMBER:		171191209

	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>S-1
<SEQUENCE>1
<FILENAME>t1702894-s1.htm
<DESCRIPTION>FORM S-1
<TEXT>
Document 1 - file: t1702894-s1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>2
<FILENAME>t1702894_ex23-1.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 2 - file: t1702894_ex23-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image_001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: image_001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>lg_clearsign.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: lg_clearsign.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>t1702894_duplex-increase.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: t1702894_duplex-increase.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>t1702894_duplex-reduce.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: t1702894_duplex-reduce.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>t1702894_map-ozone.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: t1702894_map-ozone.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>t1702894_map-ozoneproj.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: t1702894_map-ozoneproj.jpg

</DOCUMENT>
</SEC-DOCUMENT>