Patents by Inventor Michael Vayntraub

Michael Vayntraub 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).

  • Multispheric contact lens
    Patent number: 5798816
    Abstract: Multispheric contact lenses have a posterior surface including a central, concave spherical optical zone and at least two concave spherical curves peripheral to the central concave optical zone. The lens includes a fillet convex curve connecting the central zone and the first peripheral curve, and fillet convex curves connecting adjacent peripheral concave curves, wherein each junction of a fillet convex curve with a concave spherical curve is tangential. The lenses have an anterior surface including one or more convex spherical curves.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: August 25, 1998
    Assignee: Polymer Technology Corporation
    Inventors: Richard R. Martin, Michael Vayntraub