Core Viewpoint - China Construction Bank Corporation has obtained a patent for a "search method, device, distributed search system, medium, and program product," with the authorization announcement number CN114020698B, applied for on November 2021 [1] Company Overview - China Construction Bank Corporation was established in 2004 and is located in Beijing, primarily engaged in monetary financial services [1] - The company has a registered capital of 26,160,038.1459 thousand RMB [1] Investment and Intellectual Property - The company has invested in 37 enterprises and participated in 46,219 bidding projects [1] - It holds 1,895 trademark information and 5,000 patent information, along with 149 administrative licenses [1]

Group 1 - Lenovo (Beijing) Co., Ltd. has applied for a patent titled "Search Method, Data Storage Method and Device," with publication number CN120256454A, filed on March 2025 [1] - The patent describes a search method that includes obtaining a first hash value set corresponding to a query value, which is determined based on a predefined family of local sensitive hash functions [1] - The method also involves obtaining a target polynomial preset for the corresponding target database, which is constructed based on packed secret sharing [1] Group 2 - Lenovo (Beijing) Co., Ltd. was established in 1992 and is located in Beijing, primarily engaged in the manufacturing of computers, communications, and other electronic devices [2] - The company has a registered capital of 565 million Hong Kong dollars and has invested in 107 enterprises [2] - Lenovo (Beijing) has participated in 5,000 bidding projects and holds 1,747 trademark information and 5,000 patent information, along with 238 administrative licenses [2]