CRHIC(SH:600528) Sou Hu Cai Jing·2026-02-28 02:30Group 1 - The State Intellectual Property Office of China has granted a patent titled "Combined Switch and Its Manufacturing Method" to China Railway Shanqiao Group Co., Ltd. and China Railway Hi-Tech Industry Co., Ltd., with the announcement number CN115928507B and application date in December 2022 [1] - China Railway Shanqiao Group Co., Ltd., established in 2001 and located in Qinhuangdao, primarily engages in black metal smelting and rolling processing, with a registered capital of 1.67 billion RMB. The company has invested in 32 enterprises, participated in 5,000 bidding projects, holds 6 trademark registrations, 594 patents, and possesses 82 administrative licenses [1] - China Railway Hi-Tech Industry Co., Ltd., founded in 1999 and based in Beijing, focuses on manufacturing for railways, ships, aerospace, and other transportation equipment, with a registered capital of approximately 2.22 billion RMB. The company has invested in 28 enterprises, participated in 5,000 bidding projects, holds 21 trademark registrations, 817 patents, and has 78 administrative licenses [1]