The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2008
Filed:
Sep. 12, 2003
John A. Moon, Wallingford, CT (US);
Martin A. Putnam, Cheshire, CT (US);
John A. Moon, Wallingford, CT (US);
Martin A. Putnam, Cheshire, CT (US);
Cyvera Corporation, Wallingford, CT (US);
Abstract
Microparticlesincludes an optical substratehaving at least one diffraction gratingdisposed therein. The gratinghaving a plurality of colocated pitches Λ which represent a unique identification digital code that is detected when illuminated by incident light. The incident lightmay be directed transversely from the side of the substratewith a narrow band (single wavelength) or multiple wavelength source, in which case the code is represented by a spatial distribution of light or a wavelength spectrum, respectively. The code may be digital binary or may be other numerical bases. The micro-particlescan provide a large number of unique codes, e.g., greater than 67 million codes, and can withstand harsh environments. The micro-particlesare functionalized by coating them with a material/substance of interest, which are then used to perform multiplexed experiments involving chemical processes, e.g., DNA testing and combinatorial chemistry.