ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,362, issued on Oct. 21, was assigned to Illumina Inc. (San Diego).

"Apparatus and method for extended depth of field" was invented by Jeffrey Gau (San Mateo, Calif.), Joseph Pinto (Solana Beach, Calif.), Anindita Dutta (San Francisco), Geraint Evans (Cambridge, Great Britain), Yina Wang (San Jose, Calif.), Simon Prince (Carlsbad, Calif.) and Stanley Hong (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for extending a depth of field of a nucleic acid sequencer may comprise optimization steps which are repeated one or more times, in which a result of passing light through an objective lens and a mask is compared with an idea...