Group 1 - ZTE Corporation (000063) has filed an international patent application titled "Method, Node, Device, System, and Medium for Handling Changes or Additions of Main and Auxiliary Cells," with application number PCT/CN2024/132977, published internationally on October 9, 2025 [1] - In 2023, ZTE has announced a total of 884 international patent applications, representing a decrease of 13.59% compared to the same period last year [4] - For the first half of 2025, ZTE's investment in research and development amounted to 12.665 billion yuan, showing a slight decrease of 0.48% year-on-year [4]

Group 1 - The China Electric Power Construction Group Chengdu Survey and Design Research Institute Co., Ltd. has applied for a patent related to a method for obtaining shear strength parameters of heterogeneous rock masses, indicating innovation in rock engineering technology [1] - The patent application was filed on April 2025, with the publication number CN120470773A, showcasing the company's ongoing commitment to research and development [1] - The proposed method enhances the accuracy and reliability of predicting shear strength in heterogeneous rock masses by incorporating a weak zone ratio coefficient into traditional geological strength indicators [1] Group 2 - The China Electric Power Construction Group Chengdu Survey and Design Research Institute Co., Ltd. was established in 2005 and is primarily engaged in the production and supply of electricity and heat [2] - The company has a registered capital of 500 million RMB and has made investments in 66 enterprises, demonstrating its active role in the industry [2] - The company has participated in 5,000 bidding projects and holds 4,071 patents, indicating a strong focus on innovation and competitive positioning in the market [2]

Group 1 - The State Grid Corporation of China and its subsidiaries have obtained a patent for a method and system for generating a knowledge graph for threat analysis in power monitoring systems, with the patent number CN115329092B and application date July 2022 [1] - The State Grid Corporation of China was established in 2003, located in Beijing, with a registered capital of approximately 130.45 billion RMB. It has invested in 73 companies and participated in 5000 bidding projects, holding 183 trademark records and 5000 patent records [1] - The Shanghai Electric Power Company, established in 1989, has a registered capital of approximately 10.95 billion RMB. It has invested in 45 companies and participated in 5000 bidding projects, holding 10 trademark records and 5000 patent records [1] Group 2 - The State Grid Electric Power Research Institute, established in 2001 in Nanjing, has a registered capital of approximately 608.5 million RMB. It has invested in 15 companies and participated in 660 bidding projects, holding 12 trademark records and 3106 patent records [2] - Beijing KEDONG Electric Control System Co., Ltd., established in 1995 in Beijing, has a registered capital of 500 million RMB. It has participated in 5000 bidding projects and holds 1287 patent records [2] - The State Grid Shaanxi Electric Power Company, established in 2021 in Xi'an, has a registered capital of approximately 35.3 billion RMB. It has invested in 6 companies and participated in 1931 bidding projects, holding 223 patent records [2]