Patents by Inventor Steve F. Nielsen

Steve F. Nielsen 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).

  • Filtration structures of wet laid, bicomponent fiber
    Patent number: 5580459
    Abstract: A filtration structure comprising a thermally bonded, wet laid, fibrous web and support is provided. The web is formed from bicomponent fiber comprising a structure-forming component and a heat-bondable component. Also provided is a filtration method using the filtration structure. Beneficially, the filtration structure may include microfiber.
    Type: Grant
    Filed: December 31, 1992
    Date of Patent: December 3, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: Edward J. Powers, Steve F. Nielsen, Jeanne E. Smith, Theodore S. Thornburg