Patents by Inventor Kenneth Gerald Matthews

Kenneth Gerald Matthews 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).

  • Non-woven materials and a method of making them
    Patent number: 3940302
    Abstract: A non-woven web contains bicomponent filaments having a core of polypropylene and a sheath of specified copolyamides, together with polypropylene homofilaments, in which is embedded parallel yarns extending in its lengthwise direction. The yarns are composed of bicomponent filaments having a copolyamide sheath. The combination of properties of the product makes it suitable for use as a primary backing for tufted carpets.
    Type: Grant
    Filed: February 4, 1975
    Date of Patent: February 24, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Kenneth Gerald Matthews, John Richardson