Patents by Inventor Otto Ramsauer

Otto Ramsauer 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).

  • Tufted carpet with woven ribbon backing of polyamide and polyester
    Patent number: 4010303
    Abstract: A tufted nylon carpet having ribbon-shaped warp and filling yarns made from a mixture of 65 to 80 weight percent polyamide and 20 to 35 weight percent polyester. The yarns of the fiber exhibit a reduced tendency to split and the carpet has high dimensional stability and a very level appearance.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: March 1, 1977
    Assignee: Akzona Incorporated
    Inventors: Otto Ramsauer, Heribert Dau, Willi Gumbmann, Ulrich Schulze