Patents by Inventor Nitu Kohli

Nitu Kohli 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).

  • Chemical indicator
    Patent number: 6936223
    Abstract: A chemical indicator of an aurin moiety in a substrate to detect the presence of an oxidizing agent.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: August 30, 2005
    Assignee: Ethicon, Inc.
    Inventors: Thomas G. Lippold, Nitu Kohli, Pascale D. Endo, Henry K. Hui, Szu-Min Lin
  • Apparatus with a chemical indicator for indicating exposure to an oxidative sterilant or disinfectant
    Patent number: 6551555
    Abstract: An apparatus for determining exposure to an oxidative sterilant is described. The apparatus includes a chemical indicator for indicating exposure to the oxidative sterilant and a biological indicator for determining the effectiveness of the exposure to the oxidative sterilant. The chemical indicator has a metallic surface with a non-pH sensitive permanent indicator on the surface for indicating exposure to the oxidative sterilant. The chemical indicator may be on a self-contained biological indicator. The biological indicator and chemical indicator may be inside a test pack, where the test pack restricts sterilant flow to the indicators.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: April 22, 2003
    Assignee: Ethicon, Inc.
    Inventors: Patricia A. Antonoplos, Henry K. Hui, Alireza Ebrahim, Leslie A. Feldman, Nitu Kohli
  • Chemical indicator
    Publication number: 20020151084
    Abstract: A chemical indicator of an aurin moiety in a substrate to detect the presence of an oxidizing agent.
    Type: Application
    Filed: March 28, 2002
    Publication date: October 17, 2002
    Inventors: Thomas G. Lippold, Nitu Kohli, Pascale D. Endo, Henry K. Hui, Szu-Min Lin
  • Method of indicating an oxidizing agent
    Patent number: 6410338
    Abstract: A chemical indicator of an aurin moiety in a substrate to detect the presence of an oxidizing agent.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: June 25, 2002
    Assignee: Ethicon, Inc.
    Inventors: Thomas G. Lippold, Nitu Kohli, Pascale D. Endo, Henry K. Hui, Szu-Min Lin
  • Apparatus with a chemical indicator for indicating exposure to an oxidative sterilant or disinfectant
    Publication number: 20020051733
    Abstract: An apparatus for determining exposure to an oxidative sterilant is described. The apparatus includes a chemical indicator for indicating exposure to the oxidative sterilant and a biological indicator for determining the effectiveness of the exposure to the oxidative sterilant. The chemical indicator has a metallic surface with a non-pH sensitive permanent indicator on the surface for indicating exposure to the oxidative sterilant. The chemical indicator may be on a self-contained biological indicator. The biological indicator and chemical indicator may be inside a test pack, where the test pack restricts sterilant flow to the indicators.
    Type: Application
    Filed: December 19, 2000
    Publication date: May 2, 2002
    Inventors: Patricia A. Antonoplos, Henry K. Hui, Alireza Ebrahim, Leslie A. Feldman, Nitu Kohli
  • Method for indicating exposure to an oxidative sterilant or disinfectant
    Patent number: 6218189
    Abstract: A method and apparatus detect exposure to an oxidation-type sterilant using a non-PH-sensitive bleachable dye as a chemical indicator. A change in color indicates exposure to oxidation-type sterilant.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: April 17, 2001
    Assignee: Johnson & Johnson Medical, Inc.
    Inventors: Patricia A. Antonoplos, Henry K. Hui, Alireza Ebrahim, Leslie A. Feldman, Nitu Kohli
  • Chemical indicator for oxidation-type sterilization processes using bleachable dyes
    Patent number: 5942438
    Abstract: A method and apparatus for detecting exposure to an oxidation-type sterilant using a chemical indicator comprising bleachable dye is disclosed. Using the method and apparatus disclosed, a bleachable azo dye is incorporated with an anodized aluminum or chromate conversion coated surface and exposed to an oxidation-type sterilant, such as hydrogen peroxide, and inspected upon completion of the sterilization process for color change. If exposed to sterilant for an appropriate amount of time the bleachable dye changes color thereby indicating adequate sterilization. The surface incorporating bleachable dye may be made to change color after a predetermined number of exposures to a oxidation-type sterilant.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: August 24, 1999
    Assignee: Johnson & Johnson Medical, Inc.
    Inventors: Patricia A. Antonoplos, Henry K. Hui, Alireza Ebrahim, Leslie A. Feldman, Nitu Kohli