Patents by Inventor Daryl A. Cheim

Daryl A. Cheim 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).

  • Retrofit LED Lighting System
    Publication number: 20160018061
    Abstract: A retrofit LED lighting system for replacement of existing metal halide lamp driven by magnetic ballast is provided. The retrofit lamp includes a circuit that converts the AC current supplied by magnetic ballast to DC current required for illuminating the LEDs.
    Type: Application
    Filed: May 18, 2015
    Publication date: January 21, 2016
    Inventors: Donald Barnetson, John X. Zhang, Daryl A. Cheim, Ardeshir Esmaeili
  • Retrofit LED lighting system
    Patent number: 9033545
    Abstract: A retrofit LED lighting system for replacement of existing metal halide lamp driven by magnetic ballast is provided. The retrofit lamp includes a circuit that converts the AC current supplied by magnetic ballast to DC current required for illuminating the LEDs.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: May 19, 2015
    Assignee: Lunera Lighting Inc.
    Inventors: Donald Barnetson, John X Zhang, Daryl A Cheim, Ardeshir Esmaeili
  • Retrofit LED Lighting System
    Publication number: 20150049490
    Abstract: A retrofit LED lighting system for replacement of existing metal halide lamp driven by magnetic ballast is provided. The retrofit lamp includes a circuit that converts the AC current supplied by magnetic ballast to DC current required for illuminating the LEDs.
    Type: Application
    Filed: August 19, 2013
    Publication date: February 19, 2015
    Inventors: Donald Barnetson, John X. Zhang, Daryl A Cheim, Ardeshir Esmaeili
  • Energy dissipative device and method
    Patent number: 7009835
    Abstract: An energy dissipative element protects hard disk drives from shocks and vibrations. A closed elastic envelope houses a body of open cell foam, a volume of viscous liquid, and a compressible gas. Under compression or expansion of the foam, viscous liquid flows through cell orifices and thereby dissipates energy resulting from external force applied against the elastic wall. The energy dissipative elements are applied between a disk drive housing and an outer case to create a ruggedized portable disk drive module.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: March 7, 2006
    Assignee: Olixir Technologies Corp.
    Inventors: Shrikant Desai, Prabodh Shah, Daryl A. Cheim, Darshan P. Shah