INTERNATIONAL PATENT: LIU, YUANHAO, 刘垣皜 FILES APPLICATION FOR "POWDER DIE-CASTING MANUFACTURING PROCESS FOR EARPHONE FRAME"

GENEVA, Oct. 25 -- LIU, Yuanhao (26C, Unit 2, Building 2, Deye New Town Garden, 1006 Chuangye 1st Road, Baoan DistrictShenzhen, Guangdong 518100), 刘垣皜 (中国广东省深圳市宝安区创业一路1006号德业新城花园2栋2单元26C) filed a patent application (PCT/CN2024/088308) for "POWDER DIE-CASTING MANUFACTURING PROCESS FOR EARPHONE FRAME" on Apr 17, 2024. With publication no. WO/2025/217831, the details related to the patent application was published on Oct 23, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is manage...