Patents by Inventor Dana F. Colson

Dana F. Colson 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).

  • Cooling tube for plasma arc torch
    Patent number: D500773
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: January 11, 2005
    Assignee: Tatras, Inc.
    Inventors: Dana F. Colson, Roman V. Chumchal
  • Electrode for a plasma arc torch
    Patent number: D522026
    Type: Grant
    Filed: June 12, 2004
    Date of Patent: May 30, 2006
    Assignee: Tatras, Inc.
    Inventor: Dana F. Colson, Jr.
  • Electrode for plasma arc torch
    Patent number: D496376
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: September 21, 2004
    Assignee: Tatras, Inc.
    Inventor: Dana F. Colson, Jr.
  • Fitting for plasma ARC torch
    Patent number: D498246
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: November 9, 2004
    Assignee: Tatras, Inc.
    Inventor: Dana F. Colson, Jr.