Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6651696 | Relief valve | Rodney C. Hope, F. Harold Hollister | 2003-11-25 |
| 6571822 | Low blow down relief valve | Thomas W. Neugebauer | 2003-06-03 |
| 6568418 | Precision regulator | Rodney C. Hope, Thomas W. Neugebauer | 2003-05-27 |
| 6527010 | Single pilot dual pulse spool valve | — | 2003-03-04 |