Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7546849 | Rotating bonded valve assembly | — | 2009-06-16 |
| 7350534 | Hollow ball valve assembly | Andrew Dale Riley | 2008-04-01 |
| 6588318 | Hydraulic retention system for reciprocating pump cylinder liner | James C. Aday | 2003-07-08 |
| 5960700 | Replaceable mud pump piston seal | Doug Miller | 1999-10-05 |