US Patent Issued to BAOJI SAFE PETROLEUM MACHINERY on Dec. 23 for "Integrated plugging and perforating operation system" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,919, issued on Dec. 23, was assigned to BAOJI SAFE PETROLEUM MACHINERY Co. LTD. (Baoji, China).

"Integrated plugging and perforating operation system" was invented by Jianbo Li (Shaanxi, China), Ziqiang Kang (Shaanxi, China), Jianfeng Yao (Shaanxi, China), Xijun Jiang (Shaanxi, China), Dawei Zhang (Shaanxi, China), Liang Bai (Shaanxi, China), Teng Li (Shaanxi, China), Haiquan Li (Shaanxi, China), Enfeng Yang (Shaanxi, China), Yaliang Hu (Shaanxi, China), Lin Qi (Shaanxi, China), Yonggang Lv (Shaanxi, China), Zhen Yuan (Shaanxi, China), Qiujuan Zhang (Shaanxi, China), Rui Mao (Shaanxi, China) and Bingwen Wei (Shaanxi, China).

According to the abstract* released by the U.S. Patent ...