Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6651696 | Relief valve | Richard R. Watson, F. Harold Hollister | 2003-11-25 |
| 6568418 | Precision regulator | Thomas W. Neugebauer, Richard R. Watson | 2003-05-27 |
| 6520478 | Dirty fluid valve with mechanical latch | W. Robert Cox | 2003-02-18 |