ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,173, issued on May 20, was assigned to The Johns Hopkins University (Baltimore).
"Camera-based hemoglobin detection" was invented by Simon C. Mathews (Baltimore), Amit Banerjee (Silver Spring, Md.) and Pankaj Jay Pasricha (Ellicott City, Md.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for detecting a molecule in a sample includes applying a first filter to an image at a first wavelength. The method also includes applying a second filter to the image at a second wavelength. The method also includes applying a third filter to the image at a third wavelength. The first, second, and third wavelengths are within a predetermined wavelength ran...