<SEC-DOCUMENT>0001144204-12-036858.txt : 20120628
<SEC-HEADER>0001144204-12-036858.hdr.sgml : 20120628
<ACCEPTANCE-DATETIME>20120628121740
ACCESSION NUMBER:		0001144204-12-036858
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20120628
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20120628
DATE AS OF CHANGE:		20120628

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35521
		FILM NUMBER:		12931604

	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>8-K
<SEQUENCE>1
<FILENAME>v317245_8k.htm
<DESCRIPTION>FORM 8-K
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>WASHINGTON, D.C. 20549 </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 8-K </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CURRENT REPORT </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Pursuant to Section 13 or 15(d) of the
</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Securities Exchange Act of 1934 </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Date of report (Date of earliest event
reported): June 28, 2012</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;&nbsp;</P>

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<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CLEARSIGN COMBUSTION CORPORATION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Exact name of registrant as specified
in Charter) </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;&nbsp;</P>

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    <TD STYLE="width: 32%; vertical-align: top; font-weight: bold; text-align: center">Washington</TD>
    <TD STYLE="width: 3%; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="width: 31%; vertical-align: top; font-weight: bold; text-align: center">001-35521</TD>
    <TD STYLE="width: 3%; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="width: 31%; vertical-align: top; font-weight: bold; text-align: center">26-2056298</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(State or other jurisdiction of</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>incorporation or organization)</B></P></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center">(Commission File No.)</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center">(IRS Employee Identification No.)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>12870 Interurban Avenue South</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Seattle, Washington 98168</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Address of Principal Executive Offices)
</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>206-673-4848</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Issuer Telephone number) </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions (see General Instruction
A.2 below).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD><TD STYLE="text-align: justify">Written communications pursuant to Rule 425 under the
Securities Act (17 CFR 230.425)</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD><TD STYLE="text-align: justify">Soliciting material pursuant to Rule 14a-12 under the
Exchange Act (17 CFR240.14a-12)</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD><TD STYLE="text-align: justify">Pre-commencement communications pursuant to Rule 14d-2(b)
under the Exchange Act (17 CFR 240.14d-2(b)).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD><TD STYLE="text-align: justify">Pre-commencement communications pursuant to Rule 13e-(c)
under the Exchange Act (17 CFR 240.13(e)-4(c))</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<TD STYLE="width: 0in"></TD><TD STYLE="width: 1in; text-align: left"><B>Item 8.01</B></TD><TD STYLE="text-align: justify"><B>Other Matters</B></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 63pt; text-indent: -63pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in">On June 28, 2012, ClearSign Combustion Corporation
issued a press release. The press release is included as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by
reference in its entirety into this Item 8.01.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<TD STYLE="width: 0in"></TD><TD STYLE="width: 1in; text-align: left"><B>Item 9.01</B></TD><TD STYLE="text-align: justify"><B>Financial Statements and Exhibits</B></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.75in; text-align: left">Exhibit</TD><TD STYLE="text-align: justify">99.1&#9;Press release dated June 28, 2012</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0">SIGNATURE</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.75in">Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this Current Report to be signed on its behalf by the undersigned hereunto
duly authorized.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Dated: June 28, 2012</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD COLSPAN="2">CLEARSIGN COMBUSTION CORPORATION</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; width: 50%">&nbsp;</TD>
    <TD STYLE="width: 3%">&nbsp;</TD>
    <TD STYLE="width: 35%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; width: 12%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD>By:</TD>
    <TD STYLE="text-decoration: none; border-bottom: Black 1pt solid">/s/ James N. Harmon</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>James N. Harmon</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Chief Financial Officer</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
</TABLE>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-right: 0; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-right: 0; margin-bottom: 0pt"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>EXHIBIT INDEX</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<TR STYLE="vertical-align: top">
    <TD STYLE="width: 10%; font-weight: bold">Exhibit No.</TD>
    <TD STYLE="width: 5%; font-weight: bold">&nbsp;</TD>
    <TD STYLE="width: 85%; font-weight: bold">Description</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-weight: bold">&nbsp;</TD>
    <TD STYLE="font-weight: bold">&nbsp;</TD>
    <TD STYLE="font-weight: bold">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>99.1</TD>
    <TD>&nbsp;</TD>
    <TD>Press release dated June 28, 2012</TD></TR>
</TABLE>


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<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>v317245_ex99-1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt; text-align: right">Exhibit 99.1</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt; text-align: center"><B><U>FOR IMMEDIATE RELEASE</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt; text-align: center"><B>CLEARSIGN COMBUSTION REPORTS
DRAMATIC REDUCTION OF NITROGEN OXIDES (NOx) USING PROPRIETARY ELECTRODYNAMIC COMBUSTION CONTROL&trade; (ECC&trade;) TECHNOLOGY</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt; text-align: center"><B><I>&nbsp;</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt; text-align: center"><I>A brand new technique for the
control of NOx emissions could mean major cost savings and increased efficiency for tens of thousands of commercial and industrial
boilers.</I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt"><FONT STYLE="color: black">SEATTLE, WA &ndash; JUNE
28, 2012 - ClearSign Combustion Corporation (Nasdaq: CLIR),</FONT> an emerging leader in combustion and emissions control technology
for industrial, commercial and utility markets, reported today that it has successfully demonstrated extraordinary reductions in
emissions of Nitrogen Oxides (NOx) using its proprietary Electrodynamic Combustion Control&trade; (ECC&trade;) technology. The
company reports NOx emissions of 15 parts per million (ppm), in a system with thermal output of more than 400,000 Btus per hour.
15 ppm is superior to the NOx reduction performance of most commercially available Low NOx burners (LNBs), and is equivalent or
superior to the performance of many Ultra-Low NOx burners (ULNBs) in the market today.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">NOx is a criteria pollutant that contributes to ground-level
ozone and is regulated by the EPA. In many parts of the United States, NOx emissions levels are required to be below 20 ppm. However,
California&rsquo;s South Coast Air Quality Management District, which includes the greater Los Angeles area, has introduced new
regulations that come into effect in January of next year requiring boiler operators to further reduce NOx emissions to 9 ppm,
and subsequently to under 5 ppm.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">According to ClearSign&rsquo;s Chief Technology Officer,
Joe Colannino, these standards will be difficult to meet using conventional burner technology alone. Colannino says that this demonstration
is a major validation of the burner design improvements enabled by ClearSign&rsquo;s ECC technology, and a key milestone in the
path to commercialization.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&ldquo;This is a very exciting early development,&rdquo;
said Colannino. &ldquo;15 parts per million is a very competitive number for even Ultra-Low NOx burners. These results exceeded
our expectations for this stage of development, and help build confidence that we may soon be able to report further performance
improvements to surpass this milestone as we progress toward commercialization.&rdquo;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&ldquo;Not only were we able to dramatically reduce
NOx levels,&rdquo; Colannino added, &ldquo;but our ECC technology allowed us to achieve this with a radically simplified burner
design requiring minimal excess air and without the use of any fans or blowers for flue gas recirculation (FGR).&quot;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">According to Colannino, most Low NOx burners use complex
arrays of multiple gas jets to stage the introduction of fuel and air. In many cases, large fans must also be added to recirculate
flue gas in order to reach NOx emissions targets. Unlike these legacy technologies, ClearSign's ECC technology requires minimal
excess air, optimizing fuel efficiency while at the same time eliminating the need for these fans, which are expensive and require
substantial power to operate.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">Colannino also pointed out that because ECC technology
can maintain flame stability across a wide operating range, it can enable much higher turndown ratios than competing technologies.
This has the effect of significantly increasing fuel efficiency in industrial and commercial settings where boilers are frequently
cycled to reflect changes in demand.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">In many cases, Low NOx or Ultra-Low NOx burners must
also be combined with Selective Catalytic Reduction (SCR) after-treatment systems in order to meet the regulatory standard. This
imposes a cost burden that can average several hundred thousand dollars in new capital and construction costs (for a mid-sized
industrial boiler) as well as adding recurring operating costs associated with the handling, use and disposal of chemical additives.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&ldquo;Boiler operators are always focused on achieving
NOx emissions standards at the lowest possible cost,&rdquo; offered ClearSign CEO, Rick Rutkowski. &ldquo;We are hearing many prospective
customers from multiple segments of industry express grave concern about the escalating cost of complying with ever more stringent
regulations.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&ldquo;This demonstration is a tremendous affirmation
of the compelling value proposition of Electrodynamic Combustion Control as it relates to control of NOx emissions,&rdquo; Rutkowski
continued. &ldquo;Our goal is to improve emissions performance to meet even the most stringent standards while at the same time
simplifying burner design and eliminating the need for supplemental flue gas recirculation or costly SCR systems.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&ldquo;We believe that our technology is a powerful
tool that our customers may be able to use to reverse the trend of rapidly escalating costs in complying with air quality regulations,&rdquo;
Rutkowski said. &ldquo;We believe that ECC technology offers the potential to dramatically reduce the high recurring cost associated
with control of NOx emissions and will feature a much lower total cost of ownership than current generation technology.&rdquo;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">According to the company, reducing NOx emissions is
just one of several powerful combustion control effects enabled by ECC technology. The technology can also be used to improve control
of flame shape, to reduce or eliminate emissions of multiple pollutants including particulate, NOx and CO (Carbon Monoxide) and
to improve both heat transfer efficiency and heat distribution. Each of these effects has significant commercial implications independently
and can be combined in many cases to yield even more powerful advantages including increased plant productivity and cost savings.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&ldquo;Our goal is to turn the economics of emissions
control on its head.&quot; said Rutkowski. &ldquo;We believe our technology will enable our customers to reduce multiple types
of emissions by suppressing them at the source and at the same time, will increase system efficiency, throughput and overall productivity.
The ability to combine increased efficiency with emissions control is unprecedented and, potentially, a sea change. We&rsquo;re
talking about a world where environmental compliance is no longer a cost but instead a source of additional profit and return on
invested capital. That&rsquo;s great news for both industry and the environment.&rdquo;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">Last year, The McIlvaine Company estimated that global
sales of air pollution control equipment in 2011 were $42 billion. There are approximately 163,000 boilers operating at the commercial
and industrial scale in the US.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt"><B>About ClearSign Combustion Corporation</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">ClearSign Combustion Corporation designs and develops
technologies that aim to improve key performance characteristics of combustion systems including energy efficiency, emissions control,
fuel flexibility and overall cost effectiveness. Our Electrodynamic Combustion Control&trade; (ECC&trade;) platform technology
improves control of flame shape and heat transfer and optimizes the complex chemical reactions that occur during combustion in
order to minimize harmful emissions. For more information about the Company, please visit www.clearsigncombustion.com</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt"><B>Cautionary note on forward-looking statements</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt"><FONT STYLE="color: black">This press release includes
forward-looking information and statements</FONT> within the meaning of the Private Securities Litigation<B> </B>Reform Act of
1995 and the provisions of Section&nbsp;27A of the Securities Act of 1933, as<B> </B>amended, and Section&nbsp;21E of the Securities
Exchange Act of 1934, as amended<FONT STYLE="color: black">. Except for historical information contained in this release, statements
in this release may constitute forward-looking statements regarding our assumptions, projections, expectations, targets, intentions
or beliefs about future events that are based on management's belief, as well as assumptions made by, and information currently
available to, management. While we believe that our expectations are based upon reasonable assumptions, there can be no assurances
that our goals and strategy will be realized. Numerous factors, including risks and uncertainties, may affect our actual results
and may cause results to differ materially from those expressed in forward-looking statements made by us or on our behalf. Some
of these factors include the acceptance of existing and future products, the impact of competitive products and pricing, general
business and economic conditions, and other factors detailed in our Quarterly Report on Form 10-Q and other periodic reports filed
with the SEC. We specifically disclaim any obligation to update or revise any forward-looking statement whether as a result of
new information, future developments or otherwise.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5pt"><B>CONTACT:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 9pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 9pt"><B>Media Contact:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 9pt">Dennis S. Dobson, Jr.,</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 9pt">(203) 258-0159</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 9pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 9pt"><B>Investor Relations:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 9pt">(206) 673-4848</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 9pt">investors@clearsigncombustion.com</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>



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