ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,371, issued on April 21, was assigned to The Regents of the University of California (Oakland, Calif.).

"Systems and methods for tuning radiative heat flows between interior surfaces and human occupants" was invented by Aaswath Pattabhi Raman (Los Angeles) and Jin Xu (Oakland, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device for controlling radiative heat flow between interior surfaces and human occupants includes a tunable emissivity material disposed between electrodes is provided. The tunable emissivity material has a low emissivity state with emissivity smaller than about 0.5 over wavelength range from about 7 microns to about 14 ...