Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the following Registration Statements:
| (1) | Registration Statement (Form S-3 No. 333-184785) of Research Frontiers Incorporated |
| (2) | Registration Statement (Form S-3 No. 333-179099) of Research Frontiers Incorporated |
| (3) | Registration Statement (Form S-3 No. 333-133858) of Research Frontiers Incorporated |
| (4) | Registration Statement (Form S-3 No. 333-40369) of Research Frontiers Incorporated |
| (5) | Registration Statement (Form S-3 No. 333-115052) of Research Frontiers Incorporated |
| (6) | Registration Statement (Form S-3 No. 333-65219) of Research Frontiers Incorporated |
| (7) | Registration Statement (Form S-3 No. 333-159093) of Research Frontiers Incorporated |
| (8) | Registration Statement (Form S-3 No. 333-223623) of Research Frontiers Incorporated |
| (9) | Registration Statement (Form S-8 No. 333-80575) of Research Frontiers Incorporated |
| (10) | Registration Statement (Form S-8 No. 333-179097) of Research Frontiers Incorporated |
| (11) | Registration Statement (Form S-8 No. 33-53030) of Research Frontiers Incorporated |
| (12) | Registration Statement (Form S-8 No. 33-86910) of Research Frontiers Incorporated |
| (13) | Registration Statement (Form S-8 No. 333-08623) of Research Frontiers Incorporated |
| (14) | Registration Statement (Form S-8 No. 333-34163) of Research Frontiers Incorporated |
| (15) | Registration Statement (Form S-8 No. 333-63374) of Research Frontiers Incorporated |
| (16) | Registration Statement (Form S-8 No. 333-106754) of Research Frontiers Incorporated |
| (17) | Registration Statement (Form S-8 No.333-159094) of Research Frontiers Incorporated |
| (18) | Registration Statement (Form S-8 No. 333-196746) of Research Frontiers Incorporated |
| (19) | Registration Statement (Form S-8 No. 333-237035) of Research Frontiers Incorporated |
of our report dated March 5, 2026, with respect to the consolidated financial statements of Research Frontiers Incorporated included in this Annual Report (Form 10-K) of Research Frontiers Incorporated for the year ended December 31, 2025.
/s/ CohnReznick LLP
Melville, New York
March 5, 2026