<SEC-DOCUMENT>0001062993-18-003059-index.html : 20180730
<SEC-HEADER>0001062993-18-003059.hdr.sgml : 20180730
<ACCEPTANCE-DATETIME>20180730141647
ACCESSION NUMBER:		0001062993-18-003059
CONFORMED SUBMISSION TYPE:	SC 13D
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180730
DATE AS OF CHANGE:		20180730
GROUP MEMBERS:		GPCLIRSPV LLC
GROUP MEMBERS:		PRINCETON OPPORTUNITY MANAGEMENT LLC
GROUP MEMBERS:		ROBERT T. HOFFMAN SR.

SUBJECT COMPANY:	

	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:		SC 13D
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-86820
		FILM NUMBER:		18977170

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			clirSPV LLC
		CENTRAL INDEX KEY:			0001747304
		IRS NUMBER:				825195800
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D

	BUSINESS ADDRESS:	
		STREET 1:		119 WARREN AVE
		STREET 2:		3RD FLOOR
		CITY:			SPRING LAKE
		STATE:			NJ
		ZIP:			07762-1217
		BUSINESS PHONE:		7322820743

	MAIL ADDRESS:	
		STREET 1:		119 WARREN AVE
		STREET 2:		3RD FLOOR
		CITY:			SPRING LAKE
		STATE:			NJ
		ZIP:			07762-1217
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D
<SEQUENCE>1
<FILENAME>sc13d.htm
<DESCRIPTION>SC 13D
<TEXT>
Document 1 - file: sc13d.htm

</DOCUMENT>
</SEC-DOCUMENT>