GENEVA, Nov. 30 -- 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/CN2025/084616) for "PASSIVE SAFETY PROTECTIVE BELLOWS STRUCTURE FOR ROLLING STOCK, ROLLING STOCK AND METHOD" on Mar 25, 2025. With publication no. WO/2025/241691, the details related to the patent application was published on Nov 27, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC...