Patents by Inventor Robert William Ruuska

Robert William Ruuska 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).

  • Patent number: H1670
    Abstract: An absorbent article having improved strikethrough, rewet characteristics, and feel is disclosed. The absorbent article has a topsheet comprising a nonwoven material and apertured thermoplastic film. The apertured thermoplastic film is treated with a surfactant preferably by incorporating the surfactant into the resin used to make the thermoplastic film. The combination of the nonwoven material and the surfactant-treated apertured thermoplastic film permit liquids to rapidly penetrate the topsheet while preventing liquid in the absorbent core of the article from flowing back through the topsheet. The nonwoven material provides the topsheet with improved, less plastic-like feel.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: July 1, 1997
    Inventors: Mohammed Iqbal Aziz, Sharon Darlene Kirkpatrick, Robert William Ruuska, Robert Eugene Askin, II