Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6298305 | Methods and apparatus for providing voice guidance in a vehicle navigation system | Sudha G. Kadaba | 2001-10-02 |
| 6259987 | Method and apparatus for using non-digitized cities for route calculation | Timur Ceylan, Jim Nolan | 2001-07-10 |
| 6144919 | Method and apparatus for using non-digitized cities for route calculation | Timur Ceylan, Jim Nolan | 2000-11-07 |
| 5731978 | Method and apparatus for enhancing vehicle navigation through recognition of geographical region types | Haruhisa Tamai, Simon Desai | 1998-03-24 |