Sou Hu Cai Jing·2025-12-26 11:25Group 1 - The State Intellectual Property Office of China has granted a patent to China National Petroleum Corporation Bohai Drilling Engineering Co., Ltd. for a method, system, electronic device, and storage medium related to "cooperative directional calibration" with the authorization announcement number CN120995411B, and the application date is October 2025 [1] - China National Petroleum Corporation Bohai Drilling Engineering Co., Ltd. was established in 2008 and is located in Tianjin, primarily engaged in oil and gas extraction, with a registered capital of 1,621,400,000 RMB [1] - The company has made investments in one enterprise, participated in 5,000 bidding projects, holds 10 trademark records, and has 3,334 patent records, along with 83 administrative licenses [1] Group 2 - China National Petroleum Corporation, established in 1990 and located in Beijing, is also primarily engaged in oil and gas extraction, with a registered capital of 48,690,000,000 RMB [1] - The corporation has invested in 107 enterprises, participated in 5,000 bidding projects, holds 1,446 trademark records, and has 5,000 patent records, along with 28 administrative licenses [1]