ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,343, issued on Oct. 21, was assigned to Central Glass Co. Ltd. (Ube, Japan).

"Method for purifying (hydro)halocarbon by reduced pressure distillation from azeotropic or azeotropic-like composition" was invented by Satoshi Yoshikawa (Kawagoe, Japan), Hideaki Imura (Kawagoe, Japan) and Naoki Nishinaka (Kawagoe, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "According to an embodiment, a method for producing a (hydro)halocarbon includes a step of purifying the (hydro)halocarbon by reduced-pressure distillation of an azeotropic or azeotropic-like composition containing the (hydro)halocarbon and a compound different from the (hydro)halocarbon. Acco...