Patents by Inventor Francis Wong Daw Heng

Francis Wong Daw Heng 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).

  • LED based candelabra lamp
    Patent number: 9759389
    Abstract: A LED lamp has a non-optically transmissive base connected to an optically transmissive enclosure. A LED assembly emits light when energized through an electrical path from the base. A portion of the heat sink and lamp electronics extend from the base and into the enclosure such that at least an upper portion of the heat sink extends into the interior volume defined by the enclosure. The LED assembly is supported on top of the heat sink such that the LEDs are disposed in the volume of the enclosure. An optic element extends over the LEDs and at least the portion of the heat sink. The size of the non-optically transmissive base of the lamp is reduced relative to the optically transmissive enclosure such that a greater ratio of optically transmissive view space to non-optically transmissive base is provided.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: September 12, 2017
    Assignee: Cree, Inc.
    Inventors: Michael John Bergmann, David Power, Scott Schwab, Francis Wong Daw Heng, Weng Cheng-Yao, Chen Guang-Yi
  • LED BASED CANDELABRA LAMP
    Publication number: 20160161062
    Abstract: A LED lamp has a non-optically transmissive base connected to an optically transmissive enclosure. A LED assembly emits light when energized through an electrical path from the base. A portion of the heat sink and lamp electronics extend from the base and into the enclosure such that at least an upper portion of the heat sink extends into the interior volume defined by the enclosure. The LED assembly is supported on top of the heat sink such that the LEDs are disposed in the volume of the enclosure. An optic element extends over the LEDs and at least the portion of the heat sink. The size of the non-optically transmissive base of the lamp is reduced relative to the optically transmissive enclosure such that a greater ratio of optically transmissive view space to non-optically transmissive base is provided.
    Type: Application
    Filed: December 9, 2014
    Publication date: June 9, 2016
    Inventors: Michael John Bergmann, David Power, Scott Schwab, Francis Wong Daw Heng, Weng Cheng-Yao, Chen Guang-Yi
  • LED lamp
    Patent number: D768889
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: October 11, 2016
    Assignees: Cree, Inc., Lextar Electronics Corporation
    Inventors: Michael John Bergmann, David Power, Scott Schwab, Francis Wong Daw Heng, Weng Cheng-Yao, Chen Guang-Yi