Hosting Call at 5pm ET on Tuesday, February 24th TULSA, OKLAHOMA / ACCESS Newswire / February 18, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company") a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and safety, and support the use of cleaner fuels including hydrogen, announces that on Tuesday, February 24th, 2026, at 5:00 PM ET, the Company will host a conference call to provide a bus ...