Patents by Inventor Richard B. Whitney

Richard B. Whitney 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).

  • Spectacle lenses having an inside-out conicoidal front surface and method for forming same
    Patent number: 5235357
    Abstract: Plus and minus power ophthalmic spectacle lenses for the correction of distance vision incorporating a convex aspherical front surface are provided. The front surface of the invention is described mathematically as an inside-out conicoid. the inside-out conicoidal surface, when used in conjunction with a concave spherical or toroidal back surface, provides a lens having improved off-axis optical performance and reduced thickness and flatness characteristics relative to prior art lenses of the same back vertex power and refractive index.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: August 10, 1993
    Assignee: American Optical Corporation
    Inventors: John T. Winthrop, Richard B. Whitney