Nanofiber Filter Facemasks and Cabin Filters

Inventor: Wallace Woon-Fong Leung Patent: Nanofiber Filter Facemasks and Cabin Filters (US 8303693) 纳米纤维过滤口罩和空调滤清器 (CN 104043286)   Summary of Patent: A filtration medium includes a fine filter layer having a plurality of nanofibers and a coarse filter layer having a plurality of micro fibers attached to the fine filter layer. The coarse filter layer is[…]

Multilayer nanofiber filter

  Inventor: Wallace Woon-Fong Leung and Chi Ho Hung Patent: Multilayer nanofiber filter (US 8523971) 多层奈米纤维过滤器 (CN 102481506)   Summary of Patent: A method of making a multilayer filter and the multilayer filter made by the method. The method includes generally two steps. The first step is to coat a layer of nanofibers on a[…]