Patents by Inventor Barbara A. Piper

Barbara A. Piper 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).

  • Method for reducing taciness of soft acrylic polymers
    Patent number: 5882421
    Abstract: The tackiness associated with certain soft acrylic polymers can be reduced by plasma treatment of the polymer surface. This is particularly useful with regard to intraocular lenses (IOLs), especially foldable IOLs, which are made from such soft acrylic polymers.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: March 16, 1999
    Assignee: Alcon Laboratories, Inc.
    Inventors: Albert R. LeBoeuf, George Green, Barbara A. Piper
  • Method for reducing tackiness of soft acrylic polymers
    Patent number: 5603774
    Abstract: The tackiness associated with certain soft acrylic polymers can be reduced by plasma treatment of the polymer surface. This is particularly useful with regard to intraocular lenses (IOLs), especially foldable IOLs, which are made from such soft acrylic polymers.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: February 18, 1997
    Assignee: Alcon Laboratories, Inc.
    Inventors: Albert R. LeBoeuf, George Green, Barbara A. Piper