ALEXANDRIA, Va., April 2 -- United States Patent no. 12,265,007, issued on April 1, was assigned to QuantAQ Inc..
"Air measurement device" was invented by David Hagan (Cambridge, Mass.) and Eben Cross (Melrose, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An inexpensive, yet accurate particle matter (e.g., PM) detector is described that combines the features of two different optical particle sensors with a modeling tool to provide a comprehensive, effective air quality measurement instrument (e.g., sensing instrument). The modeling tool enables the use of a combination low cost optical particle sensors, such as a nephelometer and an optical particle counter to determine the amounts of unhealthy parti...