Patents by Inventor Rosalind Dandridge

Rosalind Dandridge 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).

  • Alkaline composition for removing protein deposits
    Patent number: 6096696
    Abstract: A pH controlled protein removal system and method in the substantial absence of (a) enzyme and (b) a surfactantly effective amount of a surfactant is disclosed. The method comprises contacting a [polymeric] substrate with a cleaning composition therefor, which compostion is substantially free of (a) enzyme and (b) surfactantly effective amount of a surfactant, for a period of time at an alkaline pH and removing said substrate from said composition.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: August 1, 2000
    Assignee: CIBA Vision Corporation
    Inventors: Fu-Pao Tsao, Rosalind Dandridge
  • Method of cleaning ophthalmic lenses with alkaline composition
    Patent number: 5576276
    Abstract: A pH controlled protein removal system and method in the substantial absence of (a) enzyme and (b) a surfactantly effective amount of a surfactant is disclosed. The method comprises contacting a substrate with a cleaning composition therefor, which compostion is substantially free of (a) enzyme and (b) surfactantly effective amount of a surfactant, for a period of time at an alkaline pH and removing said substrate from said composition.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: November 19, 1996
    Assignee: Ciba Geigy Corp.
    Inventors: Fu-Pao Tsao, Rosalind Dandridge