Patents by Inventor Douglas S. Rubel

Douglas S. Rubel 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 caddy
    Patent number: D520693
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: May 9, 2006
    Assignee: The Hoover Company
    Inventors: Lynn A. Frederick, Kevin E. Scheifele, Jeffrey T. DeBord, Jay F. Perkins, Douglas S. Rubel, Oren Shai, Douglas G. Schaefer
  • Grout cleaning tool
    Patent number: D548906
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: August 14, 2007
    Assignee: The Hoover Company
    Inventors: Lynn A. Frederick, Thomas G. Diamond, Jeffery A. Morgan, Jeffrey T. DeBord, Douglas S. Rubel, Jay F. Perkins