Patents by Inventor Jon Grierson

Jon Grierson 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).

  • Contact lens
    Patent number: 5953098
    Abstract: A contact lens for use with an asymmetric aspherical cornea. The lens includes an anterior surface, a posterior surface and a base. The posterior and anterior surfaces each include a center optical portion and an outer peripheral corneal portion. The posterior surface is divided into a plurality of local surface segments by a plurality of radially extending boundaries that originate from a common center point on the posterior surface of the lens. Each of the local surface segments conforms to the shape of a corresponding local surface portion of the cornea that lies under the respective lens local surface segment when the lens is worn on the eye.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: September 14, 1999
    Assignee: Scientific Optics, Inc.
    Inventors: David M Lieberman, Jon Grierson
  • Contact lens
    Patent number: 5880809
    Abstract: A contact lens for use with an asymmetric aspherical cornea. The lens includes an anterior surface, a posterior surface and a base. The posterior and anterior surfaces each include a center optical portion and an outer peripheral corneal portion. The posterior surface is divided into a plurality of local surface segments by a plurality of radially extending boundaries that originate from a common center point on the posterior surface of the lens. Each of the local surface segments conforms to the shape of a corresponding local surface portion of the cornea that lies under the respective lens local surface segment when the lens is worn on the eye.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: March 9, 1999
    Assignee: Scientific Optics, Inc.
    Inventors: David M. Lieberman, Jon Grierson