Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6865453 | GPS navigation device | Matthew C. Burch, Jay Dee Krull, David C. Brown | 2005-03-08 |
| 6850844 | Portable navigation device with integrated GPS and dead reckoning capabilities | Thomas H. Walters, Min H. Kao | 2005-02-01 |
| 6839631 | Space based augmentation system with hierarchy for determining geographical corrections source | Clayton E. Barber | 2005-01-04 |