ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,421, issued on March 17, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).

"Rectifier, inverter, and wireless charging device" was invented by Zhangrong Hu (Shanghai) and Wei Wei (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "This application provides a rectifier, an inverter, and a wireless charging device. The rectifier includes a signal conversion unit and a switchable capacitor unit that are mutually coupled. The switchable capacitor unit is configured to switch a rectification mode of the rectifier. The rectification mode may include but is not limited to any one of the following: a voltage multiplier rectificat...