Patents by Inventor John Michael Claxton

John Michael Claxton 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).

  • Ground penetrating implement
    Patent number: D429977
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: August 29, 2000
    Assignee: Digby UK Limited
    Inventor: John Michael Claxton
  • Ground penetrating implement
    Patent number: D430463
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: September 5, 2000
    Assignee: Digby UK Limited
    Inventor: John Michael Claxton
  • Ground penetrating implement
    Patent number: D430464
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: September 5, 2000
    Assignee: Digby UK Limited
    Inventor: John Michael Claxton