Group 1 - The State Intellectual Property Office of China has granted a patent for a "handwritten signature recognition method, device, equipment, and storage medium" to China Construction Bank Corporation and Jianxin Financial Technology Co., Ltd. The patent announcement number is CN117218729B, with an application date of September 2023 [1] - China Construction Bank Corporation, established in 2004 and located in Beijing, primarily engages in monetary financial services. The company has a registered capital of 26,160,038.1459 thousand RMB. It has invested in 37 enterprises, participated in 46,422 bidding projects, and holds 1,895 trademark records and 5,000 patent records, along with 149 administrative licenses [1] - Jianxin Financial Technology Co., Ltd., founded in 2018 and based in Shanghai, focuses on software and information technology services. The company has a registered capital of 172,972.9729 thousand RMB. It has invested in 6 enterprises, participated in 4,454 bidding projects, and possesses 294 trademark records and 5,000 patent records, in addition to 10 administrative licenses [1]