Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6417784 | Automotive vehicle classification and identification by inductive signature | Steven R. Hilliard | 2002-07-09 |
| 6380868 | Permeability-modulated carrier referencing | Steven R. Hilliard | 2002-04-30 |
| 6342845 | Automotive vehicle classification and identification by inductive signature | Steven R. Hilliard | 2002-01-29 |
| 6337602 | Method and apparatus for active isolation in inductive loop detectors | Steven R. Hilliard | 2002-01-08 |