ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,315, issued on Oct. 28, was assigned to OPTOFLUIDICS INC. (Philadelphia).

"Methods for distinguishing particles in a fluid sample" was invented by Bernardo Cordovez (San Franciso, Calif.), Paul Dyer (Burlingame, Calif.), Spencer Borg (Burlingame, Calif.) and Adam Ross (Burlingame, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods for distinguishing particles in a fluid sample are disclosed. In one embodiment, the method includes acquiring a background SIMI image and a background brightfield image of a membrane filter while the membrane filter is free of a fluid sample, introducing a fluid sample onto the membrane filter, acquiring a SIMI...