Group 1 - The State Intellectual Property Office of China has granted a patent to CNOOC Engineering Co., Ltd. for a device named "Submerged Arc Welding Suction Anchor Main Lifting Point Deployment Device" with authorization announcement number CN119368885B, applied for on November 2024 [1] - CNOOC Engineering Co., Ltd. was established in 2000 and is located in Tianjin, primarily engaged in civil engineering and construction [1] - The company has a registered capital of 4421.35 million RMB and has made investments in 7 enterprises, participated in 5000 bidding projects, and holds 27 trademark registrations and 3197 patent registrations, along with 305 administrative licenses [1]