Patents by Inventor Jan E. H. Hampf

Jan E. H. Hampf 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).

  • Staff locator
    Patent number: D297640
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: September 13, 1988
    Assignee: Tateco AB
    Inventor: Jan E. H. Hampf
  • Unit for a paging system
    Patent number: D299138
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: December 27, 1988
    Assignee: Tateco AB
    Inventor: Jan E. H. Hampf
  • Keyboard for staff locator systems
    Patent number: D316549
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: April 30, 1991
    Assignee: Tateco AB
    Inventor: Jan E. H. Hampf