US Patent Issued to The Regents of the University of California on Sept. 29 for "Phase-changing polymer film for thermochromic smart windows applications" (California Inventor)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,387, issued on Sept. 29, was assigned to The Regents of the University of California (Oakland, Calif.).

"Phase-changing polymer film for thermochromic smart windows applications" was invented by Qibing Pei (Calabasas, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A solid state thermochromic polymer film comprising two or more separated solid phases with matched refractive indices, wherein the separated solid phases are transparent; and one of the phases undergoes a crystal melting above a threshold temperature resulting in significant reduction of its refractive index. The one of the phases undergoing the crystal melting becomes opaque when...