Research Frontiers Incorporated (NASDAQ:REFR) Q1 2021 Earnings Conference Call May 6, 2021 4:30 PM ET Company Participants Joe Harary - President and CEO Conference Call Participants Operator Good afternoon, ladies and gentlemen. Welcome to the Research Frontiers' Investor Conference Call to discuss the First Quarter 2021 Results of operations and recent developments. During today's presentation, all parties will be in a listen-only mode. [Operator Instructions] This conference is being recorded today. A re ...