Patents by Inventor D. Peter Choyce

D. Peter Choyce 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).

  • Intra-corneal implant for correction of aniridia
    Patent number: 4655774
    Abstract: The invention relates to an implant intended to act in place of an iris and comprises an opaque part-spherical annulus of an autoclavable plastics material which is inserted between the layers of the cornea.The central clear portion of the implant may be an open aperture or may include a lens to correct for defects in eyesight.
    Type: Grant
    Filed: March 19, 1986
    Date of Patent: April 7, 1987
    Inventor: D. Peter Choyce
  • Intraocular lens
    Patent number: 4087866
    Abstract: An intraocular lens for implantation in the anterior chamber of the human eye is provided. The lens is convexo-planar with the planar surface facing the cornea.
    Type: Grant
    Filed: April 26, 1977
    Date of Patent: May 9, 1978
    Assignee: Coburn Optical Industries, Inc.
    Inventors: D. Peter Choyce, Mohammed Jalie