Patents by Inventor Veronica V. Thralls

Veronica V. Thralls 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).

  • Hydrogen peroxide indicator employing enzyme and dye
    Patent number: 6635439
    Abstract: A method for determining exposure of a test sample to hydrogen peroxide in an atmosphere includes placing a substrate into the atmosphere, contacting the substrate with the hydrogen peroxide, reacting the hydrogen peroxide with a dye intermediate to produce a chromophore indicative of the integrated exposure of hydrogen peroxide in the atmosphere; and correlating the chromophore to the integrated exposure of hydrogen peroxide in the atmosphere. The dye intermediate may be a dye-couple of 3-methyl-2-benzothiazolinone hydrazone hydrochloride (MBTH) and 3-dimethylaminobenzoic acid (DMAB). The intensity of the chromophore is indicative of an integrated hydrogen peroxide exposure.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: October 21, 2003
    Assignee: Ethicon, Inc.
    Inventors: Todd Morrison, Veronica V. Thralls, Franklin A. Jurik
  • Hydrogen peroxide indicator employing enzyme and dye
    Publication number: 20020119508
    Abstract: A method for determining exposure of a test sample to hydrogen peroxide in an atmosphere includes placing a substrate into the atmosphere, contacting the substrate with the hydrogen peroxide, reacting the hydrogen peroxide with a dye intermediate to produce a chromophore indicative of the integrated exposure of hydrogen peroxide in the atmosphere; and correlating the chromophore to the integrated exposure of hydrogen peroxide in the atmosphere. The dye intermediate may be a dye-couple of 3-methyl-2-benzothiazolinone hydrazone hydrochloride (MBTH) and 3-dimethylaminobenzoic acid (DMAB). The intensity of the chromophore is indicative of an integrated hydrogen peroxide exposure.
    Type: Application
    Filed: December 21, 2000
    Publication date: August 29, 2002
    Inventors: Todd Morrison, Veronica V. Thralls, Franklin A. Jurik