Patents by Inventor Walter R. Graybill

Walter R. Graybill 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 surgery tool
    Patent number: 4619259
    Abstract: An ophthalmic surgery tool which takes the form of an apparatus which is to simultaneously produce a plurality of cuts within the cornea of an eye in order to improve vision. The surgery tool includes a cutter assembly which is movably mounted in respect to a base. The extent of movement of the cutter assembly is predetermined to preclude excessive cutting. Movement of the cutter assembly is due to movement structure which may either be mechanical or fluid operated.
    Type: Grant
    Filed: May 9, 1980
    Date of Patent: October 28, 1986
    Inventors: Walter R. Graybill, Jeffery J. Graybill