Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968878 | Dual bumper-light curtain obstacle detection sensor | William Pong, Allen J. Bancroft | 1990-11-06 |
| 4958068 | Dual bumper-light curtain obstacle detection sensor | William Pong, Allen J. Bancroft | 1990-09-18 |