Patents by Inventor Kathleen J. Jewett

Kathleen J. Jewett 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 the determination of hemoglobin in trace amounts
    Patent number: 4077772
    Abstract: An improved technique for determining the presence of hemoglobin, having increased sensitivity, is provided by bringing the material to be tested into contact with an acidic solution of tetramethylbenzidine and hydrogen peroxide to form a mixture, allowing said mixture to stand for a predetermined period of time, and thereafter examining the mixture for the presence of a colored complex indicative of the presence of hemoglobin. Organic acid is present in a concentration generally of at least 30 percent by volume, to provide a pH of no more than about 2.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: March 7, 1978
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Ulrich C. Geissler, William J. Stith, Kathleen J. Jewett