The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 2020
Filed:
Jun. 01, 2018
Airviz Inc., Pittsburgh, PA (US);
Illah Nourbakhsh, Pittsburgh, PA (US);
Michael Taylor, Pittsburgh, PA (US);
David Litton, Pittsburgh, PA (US);
Joshua Schapiro, Pittsburgh, PA (US);
AIRVIZ INC., Pittsburgh, PA (US);
Abstract
A low energy particle detection device comprises alight source, multiple photodetectors positioned at different scattering angles, and a microcontroller for computing a total mass concentration of fine and ultrafine particles and a mass fraction of ultrafine particles to fine particles in an incoming air particle airflow based on the ratio of the readings from the multiple photodetectors. The optical particle detection device also can determine surface area concentration of the air particle sample and the associated lung deposited surface area (LDSA) to measure and improve estimates of air quality.