Patents by Inventor Bradley J. Tenge

Bradley J. Tenge 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 of treating a consumable product and packaging for consumable products to indicate the presence of contamination
    Patent number: 4847066
    Abstract: A method is described for treating consumable products, such as foods, drugs or dietary supplements, for example drugs enclosed in capsules, to detect contamination. A colorimetric indicator, which can react with a contaminating substance such as cyanide, is incorporated into the consumable product or the packaging for the product. When the indicator comes in contact with the contaminating substance, a readily detectable color signal is produced.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: July 11, 1989
    Assignee: Board of Regents of the University of Washington
    Inventors: David E. Honigs, Jonathan H. Perkins, Bradley J. Tenge
  • Method of treating a consumable product and packaging for consumable products to indicate the presence of contamination
    Patent number: 4746616
    Abstract: A method is described for treating consumable products, such as foods, drugs or dietary supplements, for example drugs enclosed in capsules, to detect contamination. A colorimetric indicator, which can react with a contaminating substance such as cyanide, is incorporated into the consumable product or the packaging for the product. When the indicator comes in contact with the contaminating substance, a readily detectable color signal is produced.
    Type: Grant
    Filed: July 16, 1988
    Date of Patent: May 24, 1988
    Assignee: The Board of Regents of the University of Washington
    Inventors: David E. Honigs, Jonathan H. Perkins, Bradley J. Tenge