ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,189, issued on Oct. 7, was assigned to Polyceed Inc. (Tucson, Ariz.).

"Polymeric ion-conductive electrolyte sheet" was invented by Anoop Agrawal (Tucson, Ariz.), Lori L. Adams (Tucson, Ariz.), John P. Cronin (Tucson, Ariz.) and Susana J. Castillo (Tucson, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and materials to fabricate electrochromic including electrochemical devices are disclosed. In particular, emphasis is placed on the composition, fabrication and incorporation of electrolytic sheets in these devices. Composition, fabrication and incorporation of redox materials and sealants suitable for these devices are also disclosed. Inc...