Patents by Inventor Hannu K. Hartman

Hannu K. Hartman 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).

  • Paste tube dispenser
    Patent number: D335601
    Type: Grant
    Filed: August 5, 1991
    Date of Patent: May 18, 1993
    Inventors: Unto A. Heikkila, Hannu K. Hartman
  • Paste tube dispenser
    Patent number: D343539
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: January 25, 1994
    Inventors: Unto A. Heikkila, Hannu K. Hartman
  • Combined toothpaste tube dispenser and toothbrush holder
    Patent number: D348580
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: July 12, 1994
    Inventors: Unto A. Heikkila, Hannu K. Hartman