Patents by Inventor Charles X. Liao

Charles X. Liao 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 lens with surrounded lens zone
    Patent number: 6645246
    Abstract: An intraocular lens for use in a mammalian eye includes an optic adapted to focus light toward a retina of the mammalian eye and, in cooperation with the mammalian eye, to provide accommodation, the optic including a first portion adapted to move in response to the action of the mammalian eye; and a second portion surrounded by the first portion, and having a higher index of refraction than the first portion and/or being less deformable than the first portion in response to forces exerted by the mammalian eye.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: November 11, 2003
    Assignee: Advanced Medical Optics, Inc.
    Inventors: Joseph I. Weinschenk, III, Charles X. Liao, Massoud Ghazizadeh
  • Intraocular lens with a translational zone
    Patent number: 6599317
    Abstract: An intraocular lens (IOL) for use in a mammalian eye includes an optic adapted to focus light toward a retina of the mammalian eye and, in cooperation with the mammalian eye, to provide accommodation, the optic including a first portion adapted to move in response to the action of the mammalian eye; and a second portion secured to the first portion and having a higher index of refraction than the first portion and/or being positioned generally anterior of the first portion.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: July 29, 2003
    Assignee: Advanced Medical Optics, Inc.
    Inventors: Joseph I. Weinschenk, III, Charles X. Liao, Massoud Ghazizadeh