Sec Form 4 Filing - VAN VOORHEES SETH @ RESEARCH FRONTIERS INC - 2020-02-21

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 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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1. Name and Address of Reporting Person VAN VOORHEES SETH 2. Issuer Name and Ticker or Trading Symbol RESEARCH FRONTIERS INC [ REFR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) CFO & VP-Business Development (Last) (First) (Middle) C/O RESEARCH FRONTIERS INC.,, 240 CROSSWAYS PARK DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 02/21/2020 (Street) WOODBURY,, NY11797 4. If Amendment, Date Original Filed (MM/DD/YY) 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 Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction 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 Common Stock 02/21/2020 F V 13,717 A $ 1.83 152,617 D Common Stock 02/21/2020 F V 22,158 A $ 1.06 174,775 D Common Stock 02/21/2020 F V 45,272 A $ 1 220,047 D Common Stock 02/21/2020 F V 5,746 A $ 2.89 225,793 D Common Stock 02/21/2020 F V 4,661 A $ 3.11 230,454 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 Stock Option (right to buy) $ 1.83 02/21/2020 M( 1 ) 25,000 12/31/2016 12/30/2026 Common Stock 25,000 $ 0 280,191 D Stock Option (right to buy) $ 1.06 02/21/2020 M( 1 ) 30,000 12/31/2017 12/30/2027 Common Stock 30,000 $ 0 250,191 D Stock Option (right to buy) $ 1 02/21/2020 M( 1 ) 60,091 04/19/2018 04/18/2028 Common Stock 60,091 $ 0 190,100 D Stock Option (right to buy) $ 2.89 02/21/2020 M( 1 ) 20,000 06/13/2019 06/12/2029 Common Stock 20,000 $ 0 170,100 D Stock Option (right to buy) $ 3.11 02/21/2020 M( 1 ) 20,000 12/31/2019 12/31/2029 Common Stock 20,000 $ 0 150,100 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other VAN VOORHEES SETH C/O RESEARCH FRONTIERS INC., 240 CROSSWAYS PARK DRIVE WOODBURY,, NY11797 CFO & VP-Business Development Signatures /s/ Seth Van Voorhees 02/24/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents payment of $257,641 aggregate exercise price of these options by the reduction of securities issued by 63,537 shares, resulting in a net issuance of 91,554 shares.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(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).

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