Sou Hu Cai Jing·2026-01-02 11:52Group 1 - The State Intellectual Property Office of China has granted a patent to China Petroleum & Chemical Corporation and Sinopec Shanghai Petrochemical Company for a method related to oiling devices and the production of polyacrylonitrile-based carbon fiber [1] - China Petroleum & Chemical Corporation, established in 2000, is primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB [1] - The company has invested in 267 enterprises, participated in 5,000 bidding projects, and holds 45 trademark registrations and 5,000 patents [1] Group 2 - Sinopec Shanghai Petrochemical Company, founded in 1993, focuses on the oil, coal, and other fuel processing industries, with a registered capital of approximately 1.05 billion RMB [1] - The company has invested in 21 enterprises, participated in 5,000 bidding projects, and holds 51 trademark registrations and 1,351 patents [1] - Additionally, Sinopec Shanghai Petrochemical Company possesses 12,790 administrative licenses [1]