Patents by Inventor James F. Walker

James F. Walker 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).

  • Cutting torch guide and alignment device
    Patent number: D311544
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: October 23, 1990
    Assignee: North Alabama Pipe Corporation
    Inventors: Edward H. Hayes, James F. Walker