ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,432, issued on Oct. 21, was assigned to ROCHE DIAGNOSTICS OPERATIONS INC. (Indianapolis).

"Add-on and repetition aliquot testing with or without dilutions" was invented by Carlos Fernandez Gulias (Barcelona, Spain), Vanesa Leon Pujola (Barcelona, Spain), Laura Pellitero Cornet (Barcelona, Spain), Pau Roura Brun (Barcelona, Spain), Werner Smit (Immensee, Switzerland), Chye Yin Priscillia Tan (Ibach, Switzerland), Gemma Urrutia Jou (Barcelona, Spain) and Moritz von Hopffgarten (Mannheim, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of assigning an additional test to an existing aliquot sample tube or to a primary sample tube in a la...