Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Deller Colin James
 2. Date of Event Requiring Statement (Month/Day/Year)
01/28/2019		 3. Issuer Name and Ticker or Trading Symbol
CLEARSIGN COMBUSTION CORP [CLIR]
(Last)
(First)
(Middle)
C/O CLEARSIGN COMBUSTION CORPORATION, 12870 INTERURBAN AVENUES		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SEATTLE, WA 98168		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Option to purchase common stock   (1) 01/28/2029 Common Stock 400,000 $ 1.16 D  
Option to purchase common stock   (1) 01/28/2029 Common Stock 200,000 $ 2.25 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Deller Colin James
C/O CLEARSIGN COMBUSTION CORPORATION
12870 INTERURBAN AVENUES
SEATTLE, WA 98168		       President  

Signatures

/s/ Colin James Deller 01/31/2019
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) On January 28, 2019 the issuer and the reporting person entered into an employment agreement. As an incentive to enter into the agreement, the reporting person received the option grants reported above. The right to purchase one-third of the shares subject to the options vested on the date the reporting person entered into the employment agreement. The right to purchase the remainder of the shares will vest as follows: one-third on the first anniversary of the grant date and one-third on the second anniversary of the grant date.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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