ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,413, issued on Dec. 16, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China).

"Box-type substation, energy storage power supply system, and photovoltaic power generation system" was invented by Qiang Huang (Shanghai), Yazhu Zhao (Shanghai), Haiyang Pan (Shanghai), Peng Zhou (Shanghai) and Xishan Wang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A box-type substation, an energy storage power supply system, and a photovoltaic power generation system. The box-type substation includes a low-voltage cabinet, a high-voltage cabinet, a transformer, a first keychain, and a second keychain. When two circuit breakers in the...