Patents by Inventor Wilhelm F. Kunzler

Wilhelm F. Kunzler 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).

  • Mold for and method of making contact and intraocular lenses
    Patent number: 4749530
    Abstract: Molded contact and intraocular lens blanks are lathe cut into the finished lens without demolding and prior measurement of the blank by the use of a hemispherical based mold with at least one key way adapted for spindle bore feeding to a lathe equipped with a hemispherical locating ring and corresponding key. Among other things the mold and method disclosed provide a convenient way to generate prism or multiple curve segments as required for segmented bifocal lenses or the like.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: June 7, 1988
    Inventor: Wilhelm F. Kunzler
  • Material used for optical devices
    Patent number: 4645811
    Abstract: A material adapted to be used as a contact lens is made from a solid copolymer. The copolymer is made from an alkyl acrylate ester, an organosiloxane ester and a proteinaceous inhibiting wetting mixture of N-(1,1-dimethyl-3-oxobutyl)acrylamide and one or more acids selected from the group consisting of acrylic and methacrylic acid.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: February 24, 1987
    Assignee: Oculus Contact Lens Company
    Inventors: Joseph J. Falcetta, Wilhelm F. Kunzler
  • Rotational molding of contact lenses
    Patent number: 4555372
    Abstract: A toric or bifocal contact lens comprising a central optic zone and a peripheral zone, said peripheral zone having affixed to its anterior surface a bead, said bead on at least a part of the upper half of said peripheral zone being tapered down from a sweeping arc which intersects with the bead on each side of the lens to the uppermost point on the periphery of the lens. The lens can be prepared by casting in a mold to obtain the desired anterior surface of the lens followed by lathe cutting the posterior surface.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: November 26, 1985
    Assignee: Bausch & Lomb Incorporated
    Inventors: Wilhelm F. Kunzler, William F. Coombs