ClearSign Technologies Corporation. (NASDAQ:CLIR) Q4 2020 Results Earnings Conference Call March 23, 2021 5:00 PM ET Company Participants Matthew Selinger - Investor Relations Jim Deller - President and Chief Executive Officer Brian Fike - Chief Financial Officer Conference Call Participants Amit Dayal - H.C. Wainwright Robert Sussman - Bentley Capital Management Jim Kennedy - Marathon Capital Robert Kecseg - Las Colinas Capital Management Operator Good day, and welcome to the ClearSign Technologies Fourth ...