Sou Hu Cai Jing·2026-01-23 03:31Group 1 - The State Intellectual Property Office of China has granted a patent for a "controllable seismic source signal discretization method, device, and system" to China National Petroleum Corporation and China Petroleum Group Geophysical Exploration Co., Ltd. The patent announcement number is CN120009964B, with an application date of November 2023 [1] - China National Petroleum Corporation, established in 1990 and located in Beijing, primarily engages in oil and natural gas extraction. The company has a registered capital of 48,690 million RMB. It has invested in 107 enterprises, participated in 5,000 bidding projects, and holds 1,441 trademark records and 5,000 patent records, along with 28 administrative licenses [1] - China Petroleum Group Geophysical Exploration Co., Ltd., founded in 2000 and based in Baoding, focuses on professional technical services. The company has a registered capital of 1,532.4787891 million RMB. It has invested in 32 enterprises, participated in 2,399 bidding projects, and possesses 100 trademark records and 3,418 patent records, in addition to 278 administrative licenses [1]