Patents by Inventor David Wesley Lipp

David Wesley Lipp 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).

  • Anionic functional promoter and charge control agent
    Patent number: 6939443
    Abstract: The invention relates to a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000, and a cationic strength component. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: September 6, 2005
    Assignee: Lanxess Corporation
    Inventors: Michael Ryan, William Brevard, Sr., David Dauplaise, Michael Lostocco, Robert Proverb, David Wesley Lipp
  • Anionic functional promoter and charge control agent
    Publication number: 20030234089
    Abstract: The invention relates to a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000, and a cationic strength component. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.
    Type: Application
    Filed: June 19, 2002
    Publication date: December 25, 2003
    Inventors: Michael Ryan, William Brevard, David Dauplaise, Michael Lostocco, Robert Proverb, David Wesley Lipp