Patents by Inventor Yongyei Gu

Yongyei Gu 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).

  • High intensity discharge lamps, arc tubes and methods of manufacture
    Publication number: 20040014391
    Abstract: A tipless arc tube for a high intensity discharge lamp and method of manufacture wherein the arc tube may remain open to an uncontrolled atmosphere during the step of hermetically sealing the arc tube. The novel arc tube and method obviate the need to perform any process steps within a controlled atmosphere. The pressure of the fill gas sealed within the arc tube may be controlled by controlling the temperature of the fill gas during the step of hermetically sealing the arc tube. The novel arc tube and method obviate the need to use a pump to control the fill gas pressure.
    Type: Application
    Filed: June 10, 2003
    Publication date: January 22, 2004
    Inventors: Abbas Lamouri, Juris Sulcs, Yongyei Gu
  • High intensity discharge lamps, arc tubes and methods of manufacture
    Patent number: 6612892
    Abstract: A tipless arc tube for a high intensity discharge lamp and method of manufacture wherein the arc tube may remain open to an uncontrolled atmosphere during the step of hermetically scaling the arc tube. The novel arc tube and method obviate the need to perform any process steps within a controlled atmosphere. The pressure of the fill gas sealed within the arc tube may be controlled by controlling the temperature of the fill gas during the step of hermetically sealing the arc tube. The novel arc tube and method obviate the need to use a pump to control the fill gas pressure.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: September 2, 2003
    Assignee: Advanced Lighting Technologies, Inc.
    Inventors: Abbas Lamouri, Juris Sulcs, Yongyei Gu