Patents by Inventor Gordon P. K. Chu

Gordon P. K. Chu 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).

  • Photoflash lamp
    Patent number: 4045156
    Abstract: A photoflash lamp having an envelope composed of a crystallized glass which exhibits high refractoriness and mechanical strength and minimizes the propagation of flaws. The thermal expansion coefficient of the glass permits a match seal to commonly employed dumet wire leads.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: August 30, 1977
    Assignee: GTE Sylvania Incorporated
    Inventors: Gordon P. K. Chu, Dennis B. Shinn, John F. Waymouth
  • Lamp having crystallizable light diffusing envelope
    Patent number: 3960533
    Abstract: An incandescent lamp has an envelope made of partially crystallized glass in order to diffuse the light emanating from the filament.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: June 1, 1976
    Assignee: GTE Sylvania Incorporated
    Inventor: Gordon P. K. Chu