ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,646, issued on Feb. 24, was assigned to CAMFIL AKTIEBOLAG (Stockholm).
"Air filtration cassette, an air filter and a filter arrangement" was invented by Kenny Hedlund (Trosa, Sweden), Vincent Arun Kenadzir (Chemor Perak, Sweden), Christian Lindahl (Hagersten, Sweden), Mageshvaran Muthu Krisnan (Trosa, Sweden) and Mathieu Hugues (Vagnharad, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "An air filtration cassette extending in a length direction between a first end and a second end, related to an intended air flow direction from the first end to the second end during use, the air filtration cassette comprising a filter material disposed between...