Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9011110 | Relocatable sucker rod pump assembly | — | 2015-04-21 |
| 8579610 | High compression downhole pump | John L. Perkins, Michael W. Stowe | 2013-11-12 |
| 8528912 | Method and apparatus for injecting packing into stuffing boxes for reciprocating rods | Mark William Mahoney, Ian Douglas Rimmer | 2013-09-10 |
| 8403331 | Method and apparatus for injecting packing into stuffing boxes for reciprocating rods | Mark William Mahoney, Ian Douglas Rimmer | 2013-03-26 |
| 8297940 | Relocatable sucker rod pump assembly | — | 2012-10-30 |
| 8083505 | Wear rings for downhole pump | Mark William Mahoney | 2011-12-27 |
| 7909589 | Downhole pumps with sand snare | — | 2011-03-22 |
| 7686598 | Downhole pumps with sand snare | — | 2010-03-30 |
| 7607901 | Wear rings for downhole pump | Mark William Mahoney | 2009-10-27 |
| 7604464 | Mechanically actuated gas separator for downhole pump | — | 2009-10-20 |
| 6945762 | Mechanically actuated gas separator for downhole pump | — | 2005-09-20 |
| 6830441 | Valve for downhole pump | — | 2004-12-14 |
| 6273690 | Downhole pump with bypass around plunger | Charles K. Fischer | 2001-08-14 |