Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7040418 | Proppant recovery system | Daniel Perez, Nicholas Hilbig, Gary H. Dietzen, Brian Campbell | 2006-05-09 |
| 6205216 | Apparatus and method for inter-network communication | Gary Crook | 2001-03-20 |
| 5517564 | Communication apparatus and method | Gary Crook | 1996-05-14 |