Patents by Inventor Fred Hart

Fred Hart 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).

  • Face mask structure
    Patent number: 6427693
    Abstract: An improved multi-layer face mask has at least one adhesive strip applied between the inner face cover layer and the intermediate filter layer. The adhesive strip is defined so as to extend across the filter body and is bounded on each longitudinal side by longitudinally extending regions that are free of adhesive. The adhesive strip may be disposed along a pleat formed in the face mask body. For example, the adhesive strip may have a width so as to extend between parallel fold lines of a pleat.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: August 6, 2002
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Cindy J. Blackstock, Fred Hart, Lupe Santoy