Patents by Inventor Wendy R. Greczyn

Wendy R. Greczyn 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).

  • Antiperspirant-deodorant cosmetic stick products
    Patent number: 5443822
    Abstract: This invention provides an improved antiperspirant-deodorant cosmetic stick product. An essential aspect of the cosmetic stick product is a content of particulate antiperspirant and alkali metal bicarbonate ingredients, at least one of which has ingredient particle surfaces coated with a hydrophilic organic polymer.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: August 22, 1995
    Assignee: Church & Dwight Co., Inc.
    Inventors: Wendy R. Greczyn, M. Stephen Lajoie, John R. Berschied, Lawrence Kirschner
  • Process for manufacture of antiperspirant cosmetic stick products
    Patent number: 5378452
    Abstract: This invention provides an improved process for producing an antiperspirant-deodorant cosmetic stick product. An essential aspect of the process improvement is a phased order of ingredient addition and blending of formulation ingredients under controlled temperature conditions. A bicarbonate salt deodorant is added as the last ingredient during the processing, in order to minimize degradation of the bicarbonate salt under the elevated temperature conditions of the ingredient blending operation.
    Type: Grant
    Filed: December 8, 1992
    Date of Patent: January 3, 1995
    Assignee: Church & Dwight Co., Inc.
    Inventor: Wendy R. Greczyn
  • Antiperspirant-deodorant cosmetic stick products
    Patent number: 5354553
    Abstract: This invention provides an improved process for producing an antiperspirant-deodorant cosmetic stick product. An essential aspect of the process improvement is a phased order of ingredient addition and blending of formulation ingredients under controlled temperature conditions. Another essential aspect is the incorporation of particulate antiperspirant and alkali metal bicarbonate ingredients, at least one of which has ingredient particle surfaces coated with a hydrophilic organic polymer.
    Type: Grant
    Filed: December 8, 1992
    Date of Patent: October 11, 1994
    Assignee: Church & Dwight Co., Inc
    Inventors: Wendy R. Greczyn, M. Stephen Lajoie, John R. Berschied, Lawrence Kirschner
  • Low residue antiperspirant sticks
    Patent number: 5302381
    Abstract: This invention relates to an antiperspirant stick which provides the user with excellent antiperspirant/deodorant efficacy, reduced residue and high temperature stability, which comprises: (a) from about 10 to 70 percent by weight of a volatile silicone oil; (b) from about 1.5 to 30 percent by weight of a water-insoluble liquid emollient, characterized in that the weight ratio of volatile silicone oil to water-insoluble liquid emollient is greater than about 2.5:1.0; (c) from about 12 to 20 percent by weight of a low melting point wax; (d) from about 1.0 to 15 percent by weight of a coupling agent; (e) from about 0.50 to 3.0 percent by weight of a surface active agent; (f) from about 18 to 30 percent by weight of an antiperspirant active material; and (g) from about 0.05 to 30 percent by weight of a deodorant active material.
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: April 12, 1994
    Assignee: Church & Dwight Co., Inc.
    Inventors: Wendy R. Greczyn, Linda J. Lancaster, Richard T. Murphy