Patents by Inventor David Curtis Nesting

David Curtis Nesting 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).

  • Low pressure mercury vapor fluorescent lamps
    Patent number: 6781302
    Abstract: A low mercury consumption electric lamp is provided having a a layer of a luminescent material comprising a phosphor derived from a mixture of a blue-halo calcium halophosphate phosphor having an average particle size within the range of about 6.6 to about 10 microns; a calcium-yellow calcium halophosphate phosphor having an average particle size within the range of about 9.0 to about 13 microns; and fines of a warm-white calcium halophosphate phosphor, preferably having an average particle size of about 4.62.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: August 24, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Gary A. Sigai, Snehasish S. Ghosh, David Curtis Nesting, Brett A. Carter
  • Low pressure mercury vapor fluorescent lamps
    Publication number: 20040061428
    Abstract: A low mercury consumption electric lamp is provided having a a layer of a luminescent material comprising a phosphor derived from a mixture of a blue-halo calcium halophosphate phosphor having an average particle size within the range of about 6.6 to about 10 microns; a calcium-yellow calcium halophosphate phosphor having an average particle size within the range of about 9.0 to about 13 microns; and fines of a warm-white calcium halophosphate phosphor, preferably having an average particle size of about 4.62.
    Type: Application
    Filed: September 27, 2002
    Publication date: April 1, 2004
    Inventors: A. Gary Sigai, Snehasish S. Ghosh, David Curtis Nesting, Brett A. Carter