Group 1 - The State Intellectual Property Office of China granted a patent for a "dual-layer quick-push vertical drilling tool" to Sinopec Jianghan Drilling Machinery Co., Ltd. and Sinopec Petroleum Machinery Co., Ltd. The patent authorization announcement number is CN114776221B, with an application date of April 2022 [1] - Sinopec Jianghan Drilling Machinery Co., Ltd. was established in 2007 and is located in Wuhan. The company primarily engages in the automotive manufacturing industry with a registered capital of 400 million RMB. It has participated in 5,000 bidding projects and holds 368 patents [1] - Sinopec Petroleum Machinery Co., Ltd. was founded in 1998 and is also based in Wuhan, focusing on the petroleum, coal, and other fuel processing industries. The company has a registered capital of approximately 955.67 million RMB, has invested in 15 enterprises, participated in 1,456 bidding projects, and holds 1,631 patents [1]