ALEXANDRIA, Va., March 3 -- United States Patent no. 12,567,830, issued on March 3.

"High-efficiency and scalable electric photovoltaic device" was invented by Ning Wang (Weihai, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A scalable electric photovoltaic panel power-generation system is provided. The system includes components such as a stacked installation structure for photovoltaic panels, a scalable electric mechanism, a remote-control module, a clutch structure, an ACC linkage module, and a ball free slide rail. Single control or group control can be achieved through wireless remote control to control the expansion and contraction of the photovoltaic panels; the clutch structure supports electr...