Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7260951 | Pressure equalization system | David Monk, John W. Tolbert, Jr., John Narney, Charles E. Zimmerman, Timothy Wampler | 2007-08-28 |
| 6971860 | Compressor unit housing | David Gilliam, Steve Marshall, David Monk, Benjamin Majerus, Scott Hix +4 more | 2005-12-06 |