Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6681853 | Downhole anti-rotation tool | John Doyle, James L. Weber | 2004-01-27 |
| 6318462 | Downhole anti-rotation tool | — | 2001-11-20 |
| 5979550 | PC pump stabilizer | — | 1999-11-09 |
| 5156522 | Deflector means for centrifugal pumps | — | 1992-10-20 |