Patents by Inventor John Paynter

John Paynter 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).

  • Fluorescent lamp using multi-layer phosphor coating
    Patent number: 4806824
    Abstract: A fluorescent lamp utilizing a dual layer phosphor coating is disclosed and with the base layer employing a calcium halophosphate phosphor which has been modified to provide efficient lumen output at a substantially reduced coating weight. The top phosphor layer in said coating comprises a blend of narrow bandwith emitting phosphors at various coating weights primarily to improve the color rendering capability of these lamps.
    Type: Grant
    Filed: March 2, 1988
    Date of Patent: February 21, 1989
    Assignee: General Electric Company
    Inventors: John Paynter, George R. Gillooly, Thomas F. Soules, Mary V. Hoffman
  • Fluorescent lamp using multi-layer phosphor coating
    Patent number: 4623816
    Abstract: A fluorescent lamp utilizing a dual phosphor layer coating is disclosed producing efficient white color illumination at a lower cost than conventional phosphor coatings of the same type. The base layer in the phosphor coating comprises a conventional calcium haloapatite phosphor whereas the top phosphor layer comprises a tri-phosphor blend including a lanthanum cerium orthophosphate phosphor activated with terbium ion as the green color component along with a modified europium-activated yttrium oxide phosphor as the red color component.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: November 18, 1986
    Assignee: General Electric Company
    Inventors: Mary V. Hoffman, John Paynter