ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,684, issued on Jan. 13, was assigned to Dartpoint Tech. Co. Ltd. (Taipei, Taiwan).

"Fine bubble generator system" was invented by Chung-Hsin Hsieh (Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a fine bubble generator system, which has an air inlet port, a water inlet port, and a water outlet port, and includes a pump, an air inlet module, a water inlet module, and a control module. The pump has a pump inlet port and a pump outlet port. The air inlet module is connected between the air inlet port and the pump inlet port. The water inlet module is connected between the water inlet port and the pump inlet port....