US Patent Issued to Lennox Industries on April 29 for "Indoor air quality monitors for HVAC systems" (American, Indian Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,107, issued on April 29, was assigned to Lennox Industries Inc. (Richardson, Texas).

"Indoor air quality monitors for HVAC systems" was invented by Rajesh Alayil (Kerala, India), Henry Todd Greist (Gainesville, Fla.), Sanjeev Hingorani (Gainesville, Fla.) and Thomas John Wolowicz (Allen, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heating, ventilating, and air conditioning (HVAC) system includes at least one indoor air quality monitor. The indoor air quality monitor is formed with an arrangement of chambers-intake chamber, low-flow chamber, and outlet chamber-such that a particulate sensor on an interior and another air quality sensor are ...