Patents by Inventor Charles Steven Schwartz

Charles Steven Schwartz 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).

  • Tougher, softer nonwoven sheet product
    Publication number: 20030032355
    Abstract: The present invention relates to film-fibril plexifilamentary sheet products which demonstrate improved balance of toughness and softness combined with improved balance of air permeability and liquid barrier resistance, which are prepared by point bonding a nonwoven sheet on both sides by passing said sheet between embossing rolls at a combination of bonding temperature, pressure and residence time such that the majority of bond points are not bonded to the point of translucency.
    Type: Application
    Filed: February 22, 2002
    Publication date: February 13, 2003
    Inventors: Joseph R. Guckert, Brian P. Little, Robert Anthony Marin, Larry R. Marshall, Subhra K. Nath, Charles Steven Schwartz