Patents by Inventor Kenneth C. Roddy

Kenneth C. Roddy 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).

  • Ophthalmic no-line progressive addition lenses
    Patent number: 5910832
    Abstract: Ophthalmic no-line progressive addition lenses for spectacles are provided with increased sizes of usable intermediate and near addition zones. A preferred lens of the present invention comprises a distance zone, one or more intermediate addition zones and a near add zone wherein each of the zones has a generally spherical base curve. The intermediate and near addition zones are combined with the distance zone by connecting wedges which have aspheric base curves. An aspheric fringe is used to flatten the peripheral area of the bottom portion of the lens, thereby providing a thin and cosmetically acceptable lens.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: June 8, 1999
    Inventor: Kenneth C. Roddy
  • Ophthalmic no-line progressive addition lenses
    Patent number: 5812237
    Abstract: Opthalmic no-line progressive addition lenses for spectacles are provided with increased sizes of usable intermediate and near addition zones. A preferred lens of the present invention comprises a distance zone, one or more intermediate addition zones and a near add zone wherein each of the zones has a generally spherical base curve. The intermediate and near addition zones are combined with the distance zone by connecting wedges which have aspheric base curves. An aspheric fringe is used to flatten the peripheral area of the bottom portion of the lens, thereby providing a thin and cosmetically acceptable lens.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: September 22, 1998
    Inventor: Kenneth C. Roddy