Patents by Inventor Caldwell Williams

Caldwell Williams 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).

  • Patent number: D271887
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: December 20, 1983
    Assignee: Caldwell Williams
    Inventor: Caldwell Williams