Patents by Inventor Michael Gracey

Michael Gracey 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).

  • Reducing bacterial content in water
    Patent number: 4996232
    Abstract: The invention provides dry compositions which when dissolved in water exhibit unexpectedly high antibacterial activity. The compositions comprise at least two of the following ingredients (a) to (d): (a) ascorbic acid and/or its salts (b) malic acid and/or tartaric acid and/or their salts (c) sodium saccharin and/or calcium saccharin (d) sodium benzoate and/or benzoic acid.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: February 26, 1991
    Assignee: Cadbury Schweppes Proprietary Limited
    Inventors: Michael Gracey, Frank Hopkins, Jennifer Robinson, Stephen Snow