Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12152320 | Fire resistant textile material | Derek Walker, Martin HAWORTH | 2024-11-26 |
| 6955193 | Fire resistant textile material | Derek Walker | 2005-10-18 |
| 6699802 | Fire resistant textile material | Derek Walker | 2004-03-02 |
| 4942531 | Self-adapting signal detector with digital outputs | F. Nicholaas Spanhak, Richard R. Paske, Jr. | 1990-07-17 |
| 4802096 | Controlled direction non-contact detection system for automatic guided vehicles | William L. King | 1989-01-31 |
| 4492504 | Materials handling system | — | 1985-01-08 |
| 4379497 | Vehicle collision avoidance system | Robert W. Houskamp | 1983-04-12 |