US Patent Issued to YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES on July 21 for "Integrated type step-down power supply device and wellsite power supply system" (Chinese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,187, issued on July 21, was assigned to YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES Co. LTD. (Yantai, China).

"Integrated type step-down power supply device and wellsite power supply system" was invented by Jifeng Zhong (Yantai, China), Shouzhe Li (Yantai, China), Liang Lv (Yantai, China), Xincheng Li (Yantai, China), Yipeng Wu (Yantai, China) and Shuzhen Cui (Yantai, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A step-down power supply device includes: a first switch cabinet configured for receiving an alternating current having a first voltage and controlling an on-off switching of a power supply network; a transformer configured for r...