Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6363574 | Vacuum cleaner | Michael Worden, Jon Brigner, Jack P. Christen | 2002-04-02 |
| 6219880 | Vacuum cleaner | Michael Worden, Jon Brigner, Jack P. Christen | 2001-04-24 |
| D422386 | Vacuum cleaner | Philip Jaros, Donald W. Zurwelle, Jeffrey J. Baker, Jon Brigner, Jack P. Christen +3 more | 2000-04-04 |
| D335374 | Dolly | James M. Nichols | 1993-05-04 |
| D333898 | Waste container | James M. Nichols | 1993-03-09 |