Patents by Inventor Kevin John Wills

Kevin John Wills 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).

  • Oral cleansing product
    Patent number: 6685918
    Abstract: There is disclosed an oral cleansing product comprising as an abrasive an alumnina in the form of particles having d10 below 3.5 &mgr;m, d50 below 1.0 &mgr;m, and a specific surface area below 6 m2/g.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: February 3, 2004
    Assignee: Alcan International Limited
    Inventors: Kevin John Wills, Iain Stewart Duncan
  • Toothpaste of selected calcined alumina particles
    Patent number: 6682717
    Abstract: There is disclosed a toothpaste comprising as an abrasive an alumina in the form of particles having d10 below 3.5 &mgr;m, d50 below 1.0 &mgr;m and a specific surface area below 6 m2/g.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: January 27, 2004
    Assignee: Alcan International Limited
    Inventors: Kevin John Wills, Iain Stewart Duncan
  • Castable refractory systems
    Patent number: 5858900
    Abstract: A composition suitable for admixture with refractory grains to make a refractory monolithic formulation, consisting essentially of:2 to 10 parts by weight of activated alumina;0.25 to 1.0 parts by weight of an additive material which comprises at least one of an alumino-silicate-phosphate compound; a resin derived from an aldehyde and either an amine or an aromatic hydroxy compound; cellulose; polyethylene glycol(s); and methoxy polyethylene glycols;0 to 50 parts by weight of fine alumina;0 to 10 parts by weight of fine silica;0 to 1 parts by weight of a dispersant; and0 to 1 part by weight calcium aluminate cement.
    Type: Grant
    Filed: November 28, 1997
    Date of Patent: January 12, 1999
    Assignee: Alcan International Limited
    Inventors: Farid Azizian, Kevin John Wills