Patents by Inventor Ian M. Shaw

Ian M. Shaw 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).

  • Low tin jewel metal alloy
    Patent number: 4358422
    Abstract: A bismuth-lead alloy containing lesser amounts of tin, antimony and zinc has been developed for use as a fusible metal, and particularly as a jewel metal alloy. The alloy meets the standards set by presently available jewel metals, has a lower melting temperature, better casting properties, and is less expensive than currently used alloys.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: November 9, 1982
    Assignee: ASARCO Incorporated
    Inventors: Ian M. Shaw, William R. Stack