ncoded microparticlesUS849805214 Sep 200930 Jul 2013Illumina, Inc.Composition including an item and an encoded optical substrate and a method for identifying an itemUS856547523 Sep 201122 Oct 2013Illumina, Inc.Optical system and method for reading encoded microbeadsUS86148527 Sep 201024 Dec 2013Illumina, Inc.Elongated microparticles having an optically detectable code configured to at least one of