US Patent Issued to AHLSTROM on Sept. 8 for "Flue gas filtration media" (South Korean Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,374, issued on Sept. 8, was assigned to AHLSTROM OYJ (Helsinki).

"Flue gas filtration media" was invented by Jesse Shim (Daegu, South Korea), Taylor Lee (Daegu, South Korea), James Park (Daegu, South Korea), Matthew Jeon (Daegu, South Korea) and Chan Cho (Daegu, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a filter medium useful for flue gas filtering that comprises a non-woven fibrous web having at least 80 weight percent of meta-aramid fibers and from 0.1 to 20 weight percent of meta-aramid fibrids, based on weight of fibers and fibrids. The non-woven fibrous web can have average pore size of 20 to 80 micrometers, maximu...