Sou Hu Cai Jing·2025-11-28 09:33Group 1 - The State Intellectual Property Office of China has granted a patent to China Petroleum & Chemical Corporation and Sinopec (Shanghai) Petroleum and Chemical Research Institute for a device and method related to "mixer, online ammonia device for polyacrylonitrile spinning solution, and ammonia method" with the announcement number CN118988086B, applied for on May 2023 [1] - China Petroleum & Chemical Corporation, established in 2000 and based in Beijing, primarily engages in oil and gas extraction, with a registered capital of 12,173,968.9893 million RMB [1] - The company has invested in 268 enterprises, participated in 5,000 bidding projects, holds 45 trademark registrations, 5,000 patent records, and possesses 41 administrative licenses [1] Group 2 - Sinopec (Shanghai) Petroleum and Chemical Research Institute, established in 2022 and located in Shanghai, focuses on research and experimental development, with a registered capital of 49,800 million RMB [1] - The institute has invested in 2 enterprises, participated in 2,219 bidding projects, holds 807 patent records, and has 133 administrative licenses [1]