EarthEn Patents

Patent portfolio assigned to EarthEn (verified via public assignee records). EarthEn Energy Inc. (Phoenix AZ; founded 2021): long-duration energy storage using supercritical-CO2 thermo-mechanical cycle + Heat Battery (200-500C steam/hot air). Patents confirmed via assignee 'EarthEn Energy Inc.' (Justia/Google). Competitors are fellow Thermal Battery Alliance heat-battery/LDES players. 'Grid8.ai' shown as 'Powered By' partner on site (not a paying customer). Funders ORNL/NSF/DOE noted but not customers.