Patents by Inventor Anthony Donn

Anthony Donn 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).

  • Intraocular-external lens combination system and method of using same
    Patent number: 5180389
    Abstract: An intraocular lens system including a lens having a negative-powered section for use in combination with a positive-powered external lens system. The intraocular lens is preferably positioned in the posterior chamber of the eye and is configured so as to provide maximum separation between the intraocular lens and the external lens system, thereby achieving maximum magnification and field of view. Alternatively, the refracting powers of the lens system can be reversed, thus resulting in image demagnification.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: January 19, 1993
    Inventors: Anthony Donn, Charles J. Koester
  • Intraocular-external lens combination system and method of using same
    Patent number: 5074875
    Abstract: An intraocular lens system including a lens having a negative-powered section for use in combination with a positive-powered external lens system. The intraocular lens is preferably positioned in the posterior chamber of the eye and is configured so as to provide maximum separation between the intraocular lens and the external lens system, thereby achieving maximum magnification and field of view. Alternatively, the refracting powers of the lens system can be reversed, thus resulting in image demagnification.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: December 24, 1991
    Inventors: Anthony Donn, Charles J. Koester
  • Intraocular-external lens combination system and method of using same
    Patent number: 4710197
    Abstract: An intraocular lens system including a negative-powered intraocular lens for use in combination with a positive-powered external lens system. The intraocular lens is preferably positioned in the posterior chamber of the eye and is configured so as to provide maximum separation between the intraocular lens and the external lens system, thereby achieving maximum magnification and field of view. Alternatively, the refracting powers of the lens system can be reversed, thus resulting in image demagnification.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: December 1, 1987
    Inventors: Anthony Donn, Charles J. Koester