ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,972, issued on Dec. 16, was assigned to ASIA VITAL COMPONENTS Co. LTD. (New Taipei, Taiwan).

"Fan brake circuit" was invented by Po-Sheng Huang (New Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fan brake circuit includes a control module, a motor driving module electrically connected to the control module and a motor, and a brake control module including an energy storage unit, a stored energy supply control unit electrically connected to the energy storage unit and an input power supply, and a brake unit electrically connected to the stored energy supply control unit and the motor. When the fan is power off, the stored energy sup...