Group 1: Patent Application - A patent titled "Method, Device, Equipment, and Storage Medium for Maintenance Work Order Allocation in Rail Transit" has been applied for by multiple companies including Guangzhou Xinke Jiadu Technology Co., Ltd. and Jiadu Technology Group Co., Ltd. [1] - The patent aims to improve the efficiency of maintenance work order allocation by utilizing a decision tree model that processes information such as maintenance location, personnel positioning, arrival times, and historical data [1] Group 2: Company Profiles - Guangzhou Xinke Jiadu Technology Co., Ltd. was established in 2004, focusing on software and information technology services, with a registered capital of 950 million RMB and 514 patents [2] - Jiadu Technology Group Co., Ltd., founded in 2001, specializes in research and experimental development, has a registered capital of approximately 2.14 billion RMB, and holds 455 patents [2] - Guangzhou Huajia Software Co., Ltd., established in 2018, also focuses on software and information technology services, with a registered capital of about 39.22 million RMB and 288 patents [2] - Guangdong Huazhiyuan Information Engineering Co., Ltd., founded in 2003, operates in the manufacturing of computers, communications, and other electronic devices, with a registered capital of 251 million RMB and 294 patents [3] - Guangzhou Jiadu Urban Rail Intelligent Operation and Maintenance Service Co., Ltd., established in 2012, focuses on software and information technology services, with a registered capital of 5 million RMB and 286 patents [3]