Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8037797 | Method for breaching a minefield | Mark A. Frank, Les H. Richards, Christopher E. Kohl, Thomas G. Ratliff | 2011-10-18 |
| 5524524 | Integrated spacing and orientation control system | Les H. Richards, David J. Schorr, Mark J. Kelley, Edward R. Coleman | 1996-06-11 |