works · updated 2026-08-01
US Patent 4,913,985
volatility: cold
1990 Battery Temperature Regulation System patent, the first in the Cool Cell lineage, which commercially proved night-sky radiative cooling in telephone-company battery cabinets.
1990 Battery Temperature Regulation System patent, the first in the Cool Cell lineage, which commercially proved night-sky radiative cooling in telephone-company battery cabinets.