Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6411899 | Position based personal digital assistant | William O. Dussell, James M. Janky, John F. Schipper | 2002-06-25 |
| 6353796 | Vehicle tracker, mileage-time monitor and calibrator | John F. Schipper, Eric B. Rodal, James M. Janky | 2002-03-05 |