Group 1 - The State Intellectual Property Office of China has received a patent application from three companies: Guangzhou Xiyin International Import and Export Co., Ltd., Nanjing Xiyin E-commerce Co., Ltd., and Shenzhen Xiyin Information Technology Co., Ltd. for a method of "deduplication of recommendation results and related products" [1][2] - The patent application was filed on March 2025, with the publication number CN120256419A, and it describes a method that involves obtaining user behavior data during the display of a recommendation list and deduplicating the list based on a pre-obtained configuration file [1] - Guangzhou Xiyin International Import and Export Co., Ltd. was established in 2017, has a registered capital of 65 million RMB, and has invested in 14 companies, participated in 8 bidding projects, and holds 136 patents [1] - Nanjing Xiyin E-commerce Co., Ltd. was founded in 2018, has a registered capital of 30 million RMB, and holds 33 patents along with 6 administrative licenses [1] - Shenzhen Xiyin Information Technology Co., Ltd. was established in 2021, has a registered capital of 10 million RMB, and holds 19 patents and 3 administrative licenses [2]