中交一航局取得水下方块标定安装方法及系统专利

Group 1 - The State Intellectual Property Office of China has granted a patent to China Communications First Navigation Engineering Bureau Co., Ltd. for a method and system for calibrating and installing underwater blocks, with the authorization announcement number CN120440758B and an application date of May 2025 [1] - China Communications First Navigation Engineering Bureau Co., Ltd. was established in 1985 and is located in Tianjin, primarily engaged in the construction and installation industry, with a registered capital of approximately 7.29 billion RMB [1] - The company has made investments in 112 enterprises, participated in 5,000 bidding projects, and holds 4,633 patent records, along with 1,154 administrative licenses [1] Group 2 - China Communications First Navigation Engineering Bureau Second Engineering Co., Ltd. was established in 1981 and is located in Qingdao, focusing on building decoration, renovation, and other construction activities, with a registered capital of approximately 726.62 million RMB [1] - This subsidiary has invested in 8 enterprises, participated in 5,000 bidding projects, and has 13 trademark records and 921 patent records, in addition to holding 237 administrative licenses [1]