CHATSWORTH, Calif.--(BUSINESS WIRE)--IRIS INTERNATIONAL, INC. (NASDAQ: IRIS) today announced that the U.S. Patent & Trademark Office (USPTO) has issued Patent No. 7,236,623, “Analyte Recognition for Urinalysis Diagnostic System,” to the Company for its proprietary automated method of separating and recognizing particles from a cell sample, a key element in IRIS’ next generation 3GEMS™ Cell Morphology Technology Platform that encompasses unique, automated applications for hematology, enhanced urinalysis and body fluids testing.