US Patent Issued to American Ecotech L.C. on June 30 for "Mass concentration determination of particles smaller than 2.5 microns in air" (Rhode Island Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,424, issued on June 30, was assigned to American Ecotech L.C. (Warren, R.I.).

"Mass concentration determination of particles smaller than 2.5 microns in air" was invented by Herbert Schloesser (Warren, R.I.), Stephen Petrarca (Warren, R.I.), Anthony Pacheco (Warren, R.I.) and Andrew Tolley (Warren, R.I.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for determining airborne concentrations of an ensemble of particulate matter below the size fraction 2.5 micro metre in aerodynamic diameter (PM2.5). The method is to be composed of a sharp cut PM2.5 cyclone, optical sensor capable of producing scattering coefficients dependent on particle size,...