Patents by Inventor Fred D. Allen, Jr.

Fred D. Allen, Jr. 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).

  • Method and apparatus for performing keratotomy
    Patent number: 5653723
    Abstract: A keratotomy apparatus that comprises a plurality of plates. One of the plates is kept on the eye during the keratotomy. The other plates support corneal thickness sensors and guides that enable both radial and arcuate keratotomy cuts to be made. A keratotomy knife that has cams that cooperate with camming surfaces to guide the keratotomy knife. A keratotomy method comprises the steps of measuring the thickness of the cornea, providing a plurality of keratotomy knife guides, positioning the keratotomy knife guides over the cornea, and making the keratotomy cuts in the cornea.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: August 5, 1997
    Inventors: William Kamerling, Fred D. Allen, Jr.