ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,971, issued on Sept. 1, was assigned to BARRIQ INC. (Pleasanton, Calif.).
"Method and apparatus for measuring absorption coefficient of a medium" was invented by Rafael I. Aldaz (Pleasanton, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a method to optically measure the absorption coefficient of a liquid or gas medium, without affecting the medium. Such absorption spectrum can be utilized to quantify the chemical components of the medium, or other metrics such as color or signature of the medium. The method acknowledges the possible drifts in the optical components of the system with time and measures the abso...