Patents by Inventor Ronald E. Tefft

Ronald E. Tefft 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).

  • Ionomer-coated yarns and their use in papermakers wet press felts
    Patent number: 4520059
    Abstract: A textile fabric comprising synthetic yarn coated with an ionomer resin, fabric made from the textile fiber and a felt for use in papermaking machines comprising a mesh base and a fibrous upper layer, the mesh base comprising the fabric made from the textile fiber which is an ionomer resin-coated synthetic yarn.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: May 28, 1985
    Assignee: Engineered Yarns, Inc.
    Inventors: James D. Worrall, Ronald E. Tefft