Patents by Inventor Derek A. Griffiths

Derek A. Griffiths 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).

  • Horseshoe manufacture
    Patent number: 4484438
    Abstract: A horseshoe is manufactured from a length of rolled steel section whose outer edge (with respect to the finished horseshoe) is inwardly inclined. After shaping the section into the horseshoe configuration, the section is subjected to a fullering (grooving) operation in such a way that said outer edge is displaced into substantially vertical disposition.
    Type: Grant
    Filed: January 20, 1983
    Date of Patent: November 27, 1984
    Assignee: Benjamin Baker (Lye) Limited
    Inventor: Derek A. Griffiths