Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6368041 | Drum elevator system | Charles Gary Atwell, Ricky N. Cooper, Martin T. Garthaffner, Andrew Gillespie, Ronald D. Honaker +1 more | 2002-04-09 |
| 6123201 | Drum elevator system | Charles Gary Atwell, Ricky N. Cooper, Martin T. Garthaffner, Andrew Gillespie, Ronald D. Honaker +1 more | 2000-09-26 |