Sou Hu Cai Jing·2026-01-07 00:31Group 1 - The State Intellectual Property Office of China has granted a patent for a "screw drill tool with improved torque transmission capability" to China Petroleum & Chemical Corporation and Sinopec Petroleum Machinery Co., Ltd. The patent announcement number is CN116537693B, with an application date of May 2023 [1] - China Petroleum & Chemical Corporation, established in 1983 and located in Beijing, primarily engages in oil and gas extraction. The company has a registered capital of 32,654,722.2 thousand RMB. It has invested in 62 enterprises, participated in 5,000 bidding projects, and holds 4,975 patents along with 282 trademark registrations and 68 administrative licenses [1] - Sinopec Petroleum Machinery Co., Ltd., founded in 1998 and based in Wuhan, focuses on manufacturing specialized equipment. The company has a registered capital of 95,566.7689 thousand RMB. It has invested in 15 enterprises, participated in 1,774 bidding projects, and holds 1,798 patents along with 25 administrative licenses [1]