Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6459987 | Method and apparatus for backtracking a path | Jay Dee Krull | 2002-10-01 |
| 6252605 | System and method for packing spatial data in an R-tree | Stephen C. Robinson, Thomas H. Walters | 2001-06-26 |
| 6222485 | Use of desired orientation in automotive navigation equipment | Thomas H. Walters, Stephen C. Robinson | 2001-04-24 |
| 6188955 | Method and apparatus for storing cartographic route data | Stephen C. Robinson, Thomas H. Walters | 2001-02-13 |
| 6144917 | Calculation of estimated time of arrival (ETA) based on thoroughfare classification and driving history | Thomas H. Walters, Stephen C. Robinson | 2000-11-07 |
| 6032219 | System and method for buffering data | Stephen C. Robinson, Thomas H. Walters | 2000-02-29 |
| 5995970 | Method and apparatus for geographic coordinate data storage | Stephen C. Robinson, Thomas H. Walters | 1999-11-30 |