Patents by Inventor Frederick R. Higton

Frederick R. Higton 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).

  • Preserving agent and method of use thereof
    Patent number: 4636476
    Abstract: A tablet for use in preserving samples of milk for analysis comprises bronopol (2-bromo-2-nitropropane-1,3-diol) and a water-soluble solid organic carboxylic acid, the amount of the organic acid being within the range 0.002-0.07 milli-equivalents per milligram of bronopol. The presence of the organic acid stabilizes the bronopol, thereby providing a tablet with an adequate shelf life. Suitable organic acids include citric acid, tartaric acid, malic acid, adipic acid, succinic acid and fumaric acid.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: January 13, 1987
    Assignee: The Boots Company Plc
    Inventors: Keith D. Brunt, Frederick R. Higton