Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490523 | Methods and apparatus for locomotive tracking | — | 2002-12-03 |
| 6456937 | Methods and apparatus for locomotive tracking | David L. Diana, Kevin N. Clyne | 2002-09-24 |
| 6421587 | Methods and apparatus for locomotive consist determination | David L. Diana | 2002-07-16 |
| 6405127 | Method for determining stationary locomotive location in a railyard | — | 2002-06-11 |
| 6377877 | Method of determining railyard status using locomotive location | — | 2002-04-23 |