GENEVA, Nov. 3 -- CHENG, Danjie (No. 9, Miaodong Dongbian Di Lane, Damiao Zhou Village, Simen Town, Yuyao CityNingbo, Zhejiang 315400), 成丹杰 (中国浙江省宁波市余姚市泗门镇大庙周村庙东东边地弄9号) filed a patent application (PCT/CN2025/090854) for "VACUUM-SEALED DEVICE" on Apr 24, 2025. With publication no. WO/2025/223501, the details related to the patent application was published on Oct 30, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO)....