Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5602739 | Vehicle tracking system incorporating traffic signal preemption | Jeffrey D. Haagenstad, Steven M. Hamer, Ronald Allen Hagen, Edmund J. Ring, Kim K. Christopher | 1997-02-11 |
TK
Theodore B. Keyes
Overall (All Time): #3,710,040 of 4,157,543Top 90%
1
Patents All Time