Patents by Inventor David Walter Erismann

David Walter Erismann 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).

  • Aqueous intumescent fire barrier composition
    Patent number: 7045079
    Abstract: An aqueous fire barrier composition including a latex that includes a polymer, a polyol having 2, 3 or 4 hydroxy groups and a molecular weight of from about 75 to about 1200, and an intumescent agent.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: May 16, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: David Walter Erismann, George F. Vesley
  • Aqueous intumescent fire barrier composition
    Publication number: 20020171068
    Abstract: An aqueous fire barrier composition including a latex that includes a polymer, a polyol having 2, 3 or 4 hydroxy groups and a molecular weight of from about 75 to about 1200, and an intumescent agent.
    Type: Application
    Filed: March 9, 2001
    Publication date: November 21, 2002
    Inventors: David Walter Erismann, George F. Vesley