ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,716, issued on Nov. 3, was assigned to FUJI ELECTRIC Co. LTD. (Kawasaki, Japan).

"Geothermal power generation system" was invented by Shinya Ui (Tokyo), Azusa Ozawa (Tokyo) and Taku Fukumura (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A geothermal power generation system includes: gas-liquid separator; power generator; retention tank; re-injection line; re-injection pump; chemical agent injection port in the re-injection line between the retention tank and the re-injection pump; first chemical agent adding device to inject a chemical agent into the chemical agent injection port; branching section in the re-injection line on a down...