Sou Hu Cai Jing·2026-01-20 05:58Core Viewpoint - China National Petroleum Corporation (CNPC) and China National Petroleum Group Safety and Environmental Protection Technology Research Institute have obtained a patent for a method and equipment for diagnosing anaerobic/aerobic processes in biochemical units, with the patent number CN116924594B and application date in April 2022 [1] Group 1: Company Overview - China National Petroleum Corporation was established in 1999 and is based in Beijing, primarily engaged in oil and gas extraction [1] - The registered capital of China National Petroleum Corporation is 18,302,097,000 RMB [1] - The company has invested in 1,296 enterprises and participated in 443 bidding projects, holding 38 trademark records and 5,000 patent records, along with 168 administrative licenses [1] Group 2: Research Institute Overview - China National Petroleum Group Safety and Environmental Protection Technology Research Institute was established in 2007 and is also based in Beijing, focusing on research and experimental development [1] - The registered capital of the research institute is 46,000,000 RMB [1] - The institute has invested in 5 enterprises and participated in 476 bidding projects, holding 9 trademark records and 615 patent records, along with 12 administrative licenses [1]