Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5769034 | Device, system and method for on-line explosive deslagging | Frank Zilka, Tim Zilka, Kurt Prouty | 1998-06-23 |
| 4709580 | Retroflective attitude determining system | J. James Butts, Jr. | 1987-12-01 |