Patents by Inventor Hannu O. Kahonen

Hannu O. Kahonen 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).

  • Padlock
    Patent number: D353089
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: December 6, 1994
    Assignee: Abloy Security Ltd. Oy
    Inventor: Hannu O. Kahonen
  • Padlock
    Patent number: D353531
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: December 20, 1994
    Assignee: Abloy Security Ltd. Oy
    Inventor: Hannu O. Kahonen
  • Key blank
    Patent number: D361708
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: August 29, 1995
    Assignee: Abloy Security Ltd Oy
    Inventor: Hannu O. Kahonen