ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,307, issued on Nov. 3, was assigned to MITSUBISHI GAS CHEMICAL COMPANY INC. (Tokyo).

"Platinum-group metal recovery agent and platinum-group metal recovery method" was invented by Kazuya Matsumoto (Akita, Japan) and Mitsutoshi Jikei (Akita, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a platinum-group metal recovery agent represented by the following general Formula (1) and a platinum-group metal recovery method, which is a method of recovering platinum or rhodium from a hydrochloric acid solution containing platinum or rhodium using the platinum-group metal recovery agent, in which the platinum-group metal recovery agent and the...