Patents by Inventor Milton W. Chu

Milton W. Chu 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).

  • Patent number: 9277988
    Abstract: Intraocular lenses with quantum dots, materials and methods for making optical lenses, and methods of use are disclosed and claimed. Such lenses provide accurate detectable markers that can be used to align, detect, and correct orientation of lenses prior to, during and after use.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 8, 2016
    Inventor: Milton W. Chu
  • Patent number: 8308800
    Abstract: Intraocular lenses with high contrast haptics, materials and methods for making optical blanks and lenses, and methods of use are disclosed and claimed. Such lenses may provide easily recognizable visual cues that may be used to detect and correct misorientation of lenses prior to and during use.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: November 13, 2012
    Inventor: Milton W. Chu
  • Publication number: 20110251685
    Abstract: Intraocular lenses with high contrast haptics, materials and methods for making optical blanks and lenses, and methods of use are disclosed and claimed. Such lenses may provide easily recognizable visual cues that may be used to detect and correct misorientation of lenses prior to and during use.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 13, 2011
    Inventor: Milton W. Chu
  • Patent number: 6235055
    Abstract: An intraocular lens incorporating a central lens optic and a plurality of haptics, e.g., flexible haptic arms or haptic plates, having anterior and posterior sides that are visually distinguishable from each other. For example, the anterior and posterior sides of the haptics can have contrasting colors or textures. This reduces the possibility that the intraocular lens might mistakenly be implanted in a reversed orientation, with its anterior side facing rearwardly and its posterior side facing forwardly.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: May 22, 2001
    Inventor: Milton W. Chu
  • Patent number: 5480426
    Abstract: An intraocular lens suitable for scleral fixation is provided, having a disk-shaped lens optic with two flexible haptics projecting outwardly from opposite points on the lens optic's periphery, each haptic including one or more suture holes for use in suturing the haptic to the ciliary sulcus of an eye during implantation surgery. The suture holes are positioned such that they are located substantially at the haptic apexes when the lens is implanted and the haptics have been flexed inwardly a predetermined amount. In addition, the suture holes are sized to be in the range of 0.20 to 0.25 millimeters, which is large enough to receive standard sutures, but small enough to prevent excessive movement of the haptic relative to the suture and to inhibit tissue ingrowth and incarceration. This configuration minimizes the possibility of lens tilting, decentration and rotation.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: January 2, 1996
    Inventor: Milton W. Chu
  • Patent number: 5336262
    Abstract: An intraocular lens suitable for scleral fixation is provided, having a disk-shaped lens optic with two flexible haptics projecting outwardly from opposite points on the lens optic's periphery, each haptic including one or more suture holes for use in suturing the haptic to the ciliary sulcus of an eye during implantation surgery. The suture holes are positioned such that they are located substantially at the haptic apexes when the lens is implanted and the haptics have been flexed inwardly a predetermined amount. In addition, the suture holes are sized to be large enough to receive standard sutures, but small enough to prevent excessive movement of the haptic relative to the suture and to inhibit tissue ingrowth and incarceration. This configuration minimizes the possibility of lens tilting, decentration and rotation.
    Type: Grant
    Filed: August 11, 1992
    Date of Patent: August 9, 1994
    Inventor: Milton W. Chu