ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,638, issued on July 1, was assigned to AMS AG (Premstaetten, Austria).
"Optical particle counter for air quality assessment" was invented by Jaka Pribosek (Eindhoven, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for sensing particulate matter in a fluid includes a fluid flow conduit fluidically connected to an interaction chamber; a light source positioned to illuminate the interaction chamber; and a light detector assembly positioned to receive light scattered by particulate matter present in the interaction chamber. The light detector assembly includes a light detector; and an optical element, the optical element configur...