GENEVA, Feb. 8 -- CRRC QINGDAO SIFANG CO., LTD. (No.88 Jinhongdong Road, Chengyang DistrictQingdao, Shandong 266111), 中车青岛四方机车车辆股份有限公司 (中国山东省青岛市城阳区锦宏东路88号) filed a patent application (PCT/CN2025/092990) for "AIR SPRING, AIR SPRING CONTROL METHOD, AND RAILWAY VEHICLE" on May 07, 2025. With publication no. WO/2026/026085, the details related to the patent application was published on Feb 05, 2026.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by ...