Patents by Inventor Malcolm Coburn

Malcolm Coburn 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).

  • Wire manufacture
    Patent number: 4168181
    Abstract: Wire is made by cold working rod made from continuously cast silicon-killed boron steel made in an electric furnace from a charge of essentially 100% cold scrap.
    Type: Grant
    Filed: January 31, 1978
    Date of Patent: September 18, 1979
    Assignee: Eastern Steelcasting, Division of Sivaco Wire & Nail Company
    Inventors: Thomas A. Perlus, John T. Griffiths, Malcolm Coburn