ALEXANDRIA, Va., April 2 -- United States Patent no. 12,264,861, issued on April 1, was assigned to HANGZHOU LEADERWAY ELECTRONICS Co. LTD (Hangzhou, China).

"Controller, air conditioner, and high-pressure protection circuit" was invented by Yongsong Lv (Zhejiang, China), Guojian Qiu (Zhejiang, China) and Lusi Zhang (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a controller, an air conditioner, and a high-pressure protection circuit. The controller includes a first rectifier unit, a power conversion unit, a high pressure switch (HPS) wiring terminal, a low-voltage control unit, and a high-voltage operating unit. An input end of the first rectifier unit is capable of being electr...