Patents by Inventor Christopher E. Doles

Christopher E. Doles 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).

  • Tool reversing lever
    Patent number: D505308
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: May 24, 2005
    Assignee: Hand Tools Design Corporation
    Inventors: Pei Y. Lee, Christopher E. Doles
  • Tool and reversing lever
    Patent number: D474381
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: May 13, 2003
    Assignee: Hand Tools Design Corporation
    Inventors: Pei Y. Lee, Christopher E. Doles
  • Tool and reversing lever
    Patent number: D477756
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: July 29, 2003
    Assignee: Hand Tools Design Corporation
    Inventors: Pei Y. Lee, Christopher E. Doles
  • Tool reversing lever
    Patent number: D484374
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: December 30, 2003
    Assignee: Hand Tools Design Corporation
    Inventors: Pei Y. Lee, Christopher E. Doles