Patents by Inventor John Whetstone

John Whetstone 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).

  • Calcium sugar phosphates
    Patent number: 4006134
    Abstract: Calcium sucrose phosphate is manufactured in a unit operating on a semi-continuous principle by circulating a lime-sugar slurry continuously at a high rate from a holding vessel through a heat exchanger as precooler, a cooled scraped-wall reactor into which phosphorus oxychloride is injected and then back to the holding vessel. The serious problem of gel formation of the reaction mixture on cooling surfaces is obviated by this circulation technique.
    Type: Grant
    Filed: January 9, 1976
    Date of Patent: February 1, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventor: John Whetstone