Patents by Inventor William Duffett

William Duffett 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).

  • Patent number: 6703057
    Abstract: A granulated sugar product comprising a core material substantially of a granulated first sugar material having a density in the range of 0.60-1.20 g/cm3, preferably 0.70-1.10 g/cm3, and a surface material substantially of a second sugar material having a density preferably in the range of 0.01-0.55 g/cm3, wherein the surface material comprises substantially a second sugar, dextrins, sorbitol, mannitol, starch, cellulose, inulin, glycogen, xylitol, levoglucason or maltol (and ethyl derivative). The surface material may cover only some or all of the surface of the first sugar granule. The product may also incorporate a sweetener, preferably a high intensity sweetener. The resulting granulated sugar product has an overall bulk density in the range of 0.10-0.65 g/cm3 before packing. Following packing, the overall bulk density of the granulated sugar product is preferably in the range of 0.20-0.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: March 9, 2004
    Assignee: Parnova Enterprises Limited
    Inventor: William Duffett
  • Publication number: 20010002271
    Abstract: A granulated sugar product comprising a core material substantially of a granulated first sugar material having a density in the range of 0.60-1.20 g/cm3, preferably 0.70-1.10 g/cm3, and a surface material substantially of a second sugar material having a density preferably in the range of 0.01-0.55 g/cm3, wherein the surface material comprises substantially a second sugar, dextrins, sorbitol, mannitol, starch, cellulose, inulin, glycogen, xylitol, levoglucason or maltol (and ethyl derivative). The surface material may cover only some or all of the surface of the first sugar granule. The product may also incorporate a sweetener, preferably a high intensity sweetener. The resulting granulated sugar product has an overall bulk density in the range of 0.10-0.65 g/cm3 before packing. Following packing, the overall bulk density of the granulated sugar product is preferably in the range of 0.20-0.
    Type: Application
    Filed: December 29, 2000
    Publication date: May 31, 2001
    Inventor: William Duffett