Patents by Inventor Gary Lafferty

Gary Lafferty 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).

  • Rotationally stabilized contact lens and methods of lens stabilization
    Patent number: 5760870
    Abstract: Contact lenses, especially toric and bifocal, which are rotationally stabilized and methods of stabilizing contact lenses. Contact lenses are stabilized, with respect to rotation while in place on the eye, by providing the lenses with a non-circular shape. In a preferred embodiment, a toric contact lens is rotationally stabilized by providing the lens with an oval shape. Also disclosed are methods of providing non-circular lenses with appropriate shapes for proper fit to a patient's eye.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: June 2, 1998
    Assignee: CIBA Vision Corporation
    Inventors: Rick Edward Payor, Xiaoxiao Zhang, Lewis Williams, Gary Lafferty