Patents by Inventor Patricia C. Amtower

Patricia C. Amtower 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).

  • Apparatus and method for disinfecting a contact lens and detecting the presence of an oxidative disinfectant
    Patent number: 5395621
    Abstract: An apparatus and method useful for disinfecting a contact lens are disclosed. The apparatus includes a color indicator component comprising a transition metal component and a polymeric matrix material. This transition metal component, which is immobilized on the polymeric matrix material, provides a color indication of the presence of the oxidative contact lens disinfectant, e.g., hydrogen peroxide, in a liquid medium.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: March 7, 1995
    Assignee: Allergan, Inc.
    Inventor: Patricia C. Amtower
  • Method for disinfecting a contact lens and detecting the presence of an oxidative disinfectant
    Patent number: 5362444
    Abstract: An apparatus and method useful for disinfecting a contact lens are disclosed. The apparatus includes a color indicator element comprising a redox polymer containing a repeating unit which has a stable oxidized state and a stable reduced state. This color indicator element provides a color indication of the presence of the oxidative disinfectant, e.g., hydrogen peroxide, in the liquid medium.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: November 8, 1994
    Assignee: Allergan, Inc.
    Inventor: Patricia C. Amtower