Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4996468 | Automated guided vehicle | Bruce F. Field | 1991-02-26 |
| 4986378 | Machine configuration and method for steering a vehicle away from a wall | — | 1991-01-22 |
| 4846297 | Automated guided vehicle | Bruce F. Field | 1989-07-11 |
| 4790402 | Automated guided vehicle | Bruce F. Field | 1988-12-13 |
| 4757566 | Control of torque in floor maintenance tools by drive motor load | Bruce F. Field | 1988-07-19 |
| 4679271 | Automatic tool force compensator for a surface maintenance machine | Bruce F. Field | 1987-07-14 |
| 4675935 | Control and monitor for a floor maintenance device | Bruce F. Field, Keith R. Westrum, Charles E. Grimes | 1987-06-30 |