TREA

Michael W. O'Keefe

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  • Cincinnati, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical projection subsystem
    • Patent number 8,459,800
    • Issue date Jun 11, 2013
    • 3M Innovative Properties Company
    • Patrick R. Destain
    • G02 - OPTICS
  • Information Patent Grant

    Optical projection subsystem
    • Patent number 8,070,295
    • Issue date Dec 6, 2011
    • 3M Innovative Properties Company
    • Patrick R. Destain
    • G02 - OPTICS
  • Information Patent Grant

    Optical projection subsystem
    • Patent number 7,901,083
    • Issue date Mar 8, 2011
    • 3M Innovative Properties Company
    • Patrick R. Destain
    • G02 - OPTICS
  • Information Patent Grant

    Polarizing beam splitter
    • Patent number 7,529,029
    • Issue date May 5, 2009
    • 3M Innovative Properties Company
    • John E. Duncan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Optical articles from curable compositions
    • Patent number 7,463,417
    • Issue date Dec 9, 2008
    • 3M Innovative Properties Company
    • John E. Duncan
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polarizing beam splitter
    • Patent number 7,362,507
    • Issue date Apr 22, 2008
    • 3M Innovative Properties Company
    • John E. Duncan
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    OPTICAL PROJECTION SUBSYSTEM
    • Publication number 20140211173
    • Publication date Jul 31, 2014
    • 3M Innovative Properties Company
    • Patrick R. Destain
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    OPTICAL PROJECTION SUBSYSTEM
    • Publication number 20120287406
    • Publication date Nov 15, 2012
    • 3M Innovative Properties Company
    • Patrick R. Destain
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL PROJECTION SUBSYSTEM
    • Publication number 20110122371
    • Publication date May 26, 2011
    • 3M Innovative Properties Company
    • Patrick R. Destain
    • G02 - OPTICS
  • Information Patent Application

    PROJECTION SCREEN APPARATUS FOR USE WITH PORTABLE DIGITAL PROJECTORS
    • Publication number 20080158669
    • Publication date Jul 3, 2008
    • 3M Innovative Properties Company
    • Michael W. O'Keefe
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    OPTICAL PROJECTION SUBSYSTEM
    • Publication number 20080049190
    • Publication date Feb 28, 2008
    • 3M Innovative Properties Company
    • Patrick R. Destain
    • G02 - OPTICS
  • Information Patent Application

    COMBINATION CAMERA/PROJECTOR SYSTEM
    • Publication number 20080051135
    • Publication date Feb 28, 2008
    • 3M Innovative Properties Company
    • Patrick R. Destain
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    OPTICAL ARTICLES FROM CURABLE COMPOSITIONS
    • Publication number 20070188864
    • Publication date Aug 16, 2007
    • 3M Innovative Properties Company
    • John E. Duncan
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    POLARIZING BEAM SPLITTER
    • Publication number 20070085973
    • Publication date Apr 19, 2007
    • 3M Innovative Properties Company
    • John E. Duncan
    • G02 - OPTICS
  • Information Patent Application

    Front end for 3D imaging camera
    • Publication number 20070086762
    • Publication date Apr 19, 2007
    • 3M Innovative Properties Company
    • Michael W. O'Keefe
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    POLARIZING BEAM SPLITTER
    • Publication number 20070030456
    • Publication date Feb 8, 2007
    • John E. Duncan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Method for making polarizing beam splitters
    • Publication number 20070023941
    • Publication date Feb 1, 2007
    • John E. Duncan
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    POLARIZING BEAM SPLITTER
    • Publication number 20070024981
    • Publication date Feb 1, 2007
    • John E. Duncan
    • G02 - OPTICS
  • Information Patent Application

    Methods and apparatus for determining three dimensional configurations
    • Publication number 20050243330
    • Publication date Nov 3, 2005
    • Simon Magarill
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE