Patents by Inventor Andrew Damian Weller

Andrew Damian Weller 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: 6696045
    Abstract: Disclosed are dentifrice compositions comprising in a single phase: (a) from about 0.1% to about 30% of one or more linear polyphosphates having an average chain length of about 4 or more; (b) an ionic active ingredient selected from the group consisting of a fluoride ion source, a stannous ion source, a zinc ion source, a copper ion source and mixtures thereof, wherein the ionic active ingredient is present as a solid dispersion in the composition and delivers and effective amount of ionic active when solubilized; (c) a binder system comprised of (i) from about 0.05% to about 3% of a thickening agent selected from the group consisting of polysaccharides, carbomers, poloxamers, modified celluloses, and mixtures thereof; and (ii) from about 0.1% to about 70% of at least one humectant; wherein the dentifrice composition has a total water content of less than about 10%. Further disclosed are methods for stabilizing dentifrice compositions by providing such a binder system.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: February 24, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Jiang Yue, Long Zhu, Li Chen, Ying Cheng, Tao Xu, Andrew Damian Weller, Ying Wang
  • Publication number: 20030124067
    Abstract: Disclosed are dentifrice compositions comprising in a single phase: (a) from about 0.1% to about 30% of one or more linear polyphosphates having an average chain length of about 4 or more; (b) an ionic active ingredient selected from the group consisting of a fluoride ion source, a stannous ion source, a zinc ion source, a copper ion source and mixtures thereof, wherein the ionic active ingredient is present as a solid dispersion in the composition and delivers and effective amount of ionic active when solubilized; (c) a binder system comprised of (i) from about 0.05% to about 3% of a thickening agent selected from the group consisting of polysaccharides, carbomers, poloxamers, modified celluloses, and mixtures thereof; and (ii) from about 0.1% to about 70% of at least one humectant; wherein the dentifrice composition has a total water content of less than about 10%. Further disclosed are methods for stabilizing dentifrice compositions by providing such a binder system.
    Type: Application
    Filed: November 22, 2002
    Publication date: July 3, 2003
    Inventors: Jiang Yue, Long Zhu, Li Chen, Ying Cheng, Tao Xu, Andrew Damian Weller, Ying Wang