Patents by Inventor Tobias Michael Cardew

Tobias Michael Cardew 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).

  • Banded drill bit
    Patent number: D520537
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: May 9, 2006
    Inventor: Tobias Michael Cardew
  • Manual sharpener
    Patent number: D539111
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: March 27, 2007
    Inventors: Tobias Michael Cardew, Gervase Lionel Thorngate Evans
  • Try square with scriber retainer
    Patent number: D480978
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: October 21, 2003
    Inventor: Tobias Michael Cardew