Patents by Inventor Joshua Markle

Joshua Markle has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Light emitting devices and systems having tunable chromaticity and methods of tuning the chromaticity of light emitting devices and systems
    Patent number: 8740663
    Abstract: A light emitting device package assembly includes a light emitting device package body, and first, second and third white light emitting devices on the package body, each of the first, second and third white light emitting devices emits light when energized having a chromaticity that falls within a respective one of first, second and third non-overlapping chromaticity regions in a two dimensional chromaticity space. The first, second and third chromaticity regions are spaced apart in the two dimensional chromaticity space by respective regions having at least the size of a seven step MacAdam ellipse. Related solid state luminaires and methods are also disclosed.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: June 3, 2014
    Assignee: Cree, Inc.
    Inventors: Wooh Jae Kim, Gregory S. Bibee, Mark McClear, Robert E. Higley, Joshua Markle
  • Light emitting devices and systems having tunable chromaticity
    Patent number: 8339029
    Abstract: A light emitting device package assembly includes a light emitting device package body, and first, second and third white light emitting devices on the package body, each of the first, second and third white light emitting devices emits light when energized having a chromaticity that falls within a respective one of first, second and third non-overlapping chromaticity regions in a two dimensional chromaticity space. The first, second and third chromaticity regions are spaced apart in the two dimensional chromaticity space by respective regions having at least the size of a seven step MacAdam ellipse. Related solid state luminaires and methods are also disclosed.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: December 25, 2012
    Assignee: Cree, Inc.
    Inventors: Wooh Jae Kim, Gregory S. Blbee, Mark McClear, Robert E. Higley, Joshua Markle
  • LIGHT EMITTING DEVICES AND SYSTEMS HAVING TUNABLE CHROMATICITY AND METHODS OF TUNING THE CHROMATICITY OF LIGHT EMITTING DEVICES AND SYSTEMS
    Publication number: 20100315012
    Abstract: A light emitting device package assembly includes a light emitting device package body, and first, second and third white light emitting devices on the package body, each of the first, second and third white light emitting devices emits light when energized having a chromaticity that falls within a respective one of first, second and third non-overlapping chromaticity regions in a two dimensional chromaticity space. The first, second and third chromaticity regions are spaced apart in the two dimensional chromaticity space by respective regions having at least the size of a seven step MacAdam ellipse. Related solid state luminaires and methods are also disclosed.
    Type: Application
    Filed: April 8, 2010
    Publication date: December 16, 2010
    Inventors: Wooh Jae Kim, Gregory S. Blbee, Mark McClear, Robert E. Higley, Joshua Markle