Statement of Changes in Beneficial Ownership (4)

FORM 4

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

OMB APPROVAL

OMB Number:

3235-0287

Estimated average burden
hours per response...

0.5

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * BELL LON E	2. Issuer Name and Ticker or Trading Symbol ClearSign Technologies Corp [ CLIR ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director                    _____ 10% Owner _____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle) 12870 INTERURBAN AVENUE SOUTH	3. Date of Earliest Transaction (MM/DD/YYYY) 5/18/2020
(Street) SEATTLE, WA 98168 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Option to Purchase Common Stock (1)	$0.54	5/18/2020		A		17000		5/18/2020	5/18/2030	Common Stock	17000	$0.00	17000	D
Option to Purchase Common Stock	$0.72							4/1/2020	4/1/2030	Common Stock	17000		17000	D
Option to Purchase Common Stock	$1.00							(2)	4/1/2029	Common Stock	68000		68000	D

Explanation of Responses:
(1)	On May 18, 2020 the Compensation Committee of the Issuer's board of directors, in accordance with a compensation policy approved by the board of directors, approved compensation to be paid to the Issuer's non-executive directors for services provided and to be provided to the Issuer during the period from April 1, 2020 to June 30, 2020. The reporting person is a non-executive director. As compensation for their services, each non- executive director was awarded options for shares of common stock having an exercise price of $0.54. The total number of option shares awarded was based on the services provided by the director. These services include Board participation, committee participation, committee chair responsibilities and lead director responsibilities, if any. The award was issued from the Issuer's 2011 Equity Incentive Plan.
(2)	The right to exercise the option and purchase the option shares vested in equal increments as follows: the right to purchase 17,000 shares vested on May 9, 2019 and the right to purchase the remaining 51,000 shares vested in equal increments on the last day of each calendar quarter during 2019.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BELL LON E 12870 INTERURBAN AVENUE SOUTH SEATTLE, WA 98168	X

Signatures
/s/ Lon E. Bell		5/20/2020
**Signature of Reporting Person		Date