Patents by Inventor Yao Youda

Yao Youda 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).

  • PROCESS AND APPARATUS FOR IMPROVED LED PERFORMANCE
    Publication number: 20080246416
    Abstract: Process and apparatus for improving LED performance are disclosed in which, in one exemplary embodiment, a lamp having one or more LEDs is powered by at least one rechargeable battery that may be recharged by solar photovoltaic panel or any number of DC or AC power sources, including a car battery or household AC outlets. The power to illuminate the LEDs from the rechargeable battery is regulated by a control circuit that enables the LEDs to illuminate for at least twice the operating time for the same LEDs and the same rechargeable battery without the control circuit.
    Type: Application
    Filed: June 17, 2008
    Publication date: October 9, 2008
    Inventors: Dale G. Jones, Barbara L. Marcum, Yao Youda
  • Process and apparatus for improving LED performance
    Publication number: 20050082989
    Abstract: Process and apparatus for improving LED performance are disclosed in which, in one exemplary embodiment, a lamp having one or more LEDs is powered by at least one rechargeable battery that may be recharged by solar photovoltaic panel or any number of DC or AC power sources, including a car battery or household AC outlets. The power to illuminate the LEDs from the rechargeable battery is regulated by a control circuit that enables the LEDs to illuminate for at least twice the operating time for the same LEDs and the same rechargeable battery without the control circuit.
    Type: Application
    Filed: September 22, 2004
    Publication date: April 21, 2005
    Inventors: Dale Jones, Barbara Marcum, Yao Youda