Patents by Inventor C. B. Hamilton

C. B. Hamilton 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).

  • Sagometer
    Patent number: 4582404
    Abstract: An optical instrument which measures with great accuracy certain anatomical dimensions of an eye utilizing finite light beams which strike the eye from pre-determined angles and distances. The instrument measures, among other things, the critical sagittal depth of the eye where the finite light beams converge at a recognizable point. The measurements provide optimal fitting of a contact lens to the eye.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: April 15, 1986
    Inventor: C. B. Hamilton