Patents by Inventor Lois Dwyer

Lois Dwyer 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).

  • Composition and method for treating hair containing a cationic ampholytic polymer and an anionic benefit agent
    Patent number: 7012048
    Abstract: The present invention relates to compositions for treating keratin substances, in particular the hair, containing a combination of a cationic ampholytic polymer and an anionic benefit agent as well as to uses thereof. In one embodiment, the composition of the present invention comprises about 0.01 to about 20% by weight of a cationic ampholytic polymer; and about 0.01 to about 20% by weight of an anionic benefit agent.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: March 14, 2006
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Tatiana V. Drovetskaya, Joseph B. Gardner, John S. Thomaides, Lois Dwyer
  • Composition and method for treating hair containing a cationic ampholytic polymer and an anionic benefit agent
    Publication number: 20040224862
    Abstract: The present invention relates to compositions for treating keratin substances, in particular the hair, containing a combination of a cationic ampholytic polymer and an anionic benefit agent as well as to uses thereof. In one embodiment, the composition of the present invention comprises about 0.01 to about 20% by weight of a cationic ampholytic polymer; and about 0.01 to about 20% by weight of an anionic benefit agent.
    Type: Application
    Filed: January 28, 2004
    Publication date: November 11, 2004
    Inventors: Tatiana V. Drovetskaya, Joseph B. Gardner, John S. Thomaides, Lois Dwyer