Research Frontiers(REFR) - 2025 Q2 - Quarterly Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q Securities registered pursuant to Section 12(b) of the Act: Title of Class Name of Exchange on Which Registered ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES AND EXCHANGE ACT OF 1934 For the quarter ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES AND EXCHANGE ACT OF 1934 Commission File Number 000-14893 RESEARCH FRONTIERS INCORPORATED (Exact name of registrant ...