GENEVA, June 20 -- XIAMEN PINZTEC CO,. LTD (5/F Dongfu Industrial Park,#9 Building No 2877 Dongfu Avenue HaicangXiamen, Fujian 361000), 瓶子（厦门）科技有限公司 (中国福建省厦门市海沧区东孚大道2877号东孚工业园9号厂房5楼北侧) filed a patent application (PCT/CN2023/137894) for "IMPROVED FILTER MASK AND MANUFACTURING PROCESS" on Dec 11, 2023. With publication no. WO/2025/123178, the details related to the patent application was published on Jun 19, 2025.
Notably, the patent application was submitted under the Inte...