Patents by Inventor Shawn E. Brown

Shawn E. Brown 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).

  • Method of forming hot melt gaskets
    Patent number: 4988467
    Abstract: A hot melt gasket of two superimposed layers. The first layer contains a large amount of tackifier resin to ensure good adhesion to the closure surface. The second layer contains little or no tackifier resin to ensure a good seal between the closure and container. The hot melt gasket is particularly well suited for use on plastic closures, especially polyolefin closures and more especially polypropylene closures.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: January 29, 1991
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Robert S. Holdsworth, Shawn E. Brown, Joel A. Gribens
  • Hot melt gaskets and method of forming same
    Patent number: 4852754
    Abstract: A hot melt gasket of two superimposed layers. The first layer contains a large amount of tackifier resin to ensure good adhesion to the closure surface. The second layer contains little or no tackifier resin to ensure a good seal between the closure and container. The hot melt gasket is particularly well suited for use on plastic closures, especially polyolefin closures and more especially polypropylene closures.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: August 1, 1989
    Assignee: W. R. Grace & Co.
    Inventors: Robert S. Holdsworth, Shawn E. Brown, Joel A. Gribens