Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9964245 | Swivel joint with uniform ball bearing requirements | Brian C. Witkowski | 2018-05-08 |
| 8870233 | Swivel joint with uniform ball bearing requirements | Brian C. Witkowski | 2014-10-28 |
| D706397 | Portion of fluid end | John E. Hawes | 2014-06-03 |
| 8695627 | Stand for pressure relief valve | Vladimir Kugelev | 2014-04-15 |
| D687125 | Fluid end | John E. Hawes | 2013-07-30 |
| 8402880 | Packing nut lock and access bore cover locking assembly | Pankaj H. Patel | 2013-03-26 |
| 8376723 | Connecting rod without wrist pin | Vladimir Kugelev | 2013-02-19 |
| 8162631 | Floating pinion bearing for a reciprocating pump | Pankaj H. Patel | 2012-04-24 |
| D641382 | Stay rod for reciprocating pump | John E. Hawes | 2011-07-12 |
| 7823265 | Flowline torque arm assembly | Jonathan Daniel Curlett | 2010-11-02 |
| 7549681 | Flowline clamp connector | — | 2009-06-23 |
| 7451959 | Plug valve having a seal boss | — | 2008-11-18 |
| 7404704 | Manifold assembly for reciprocating pump | Vladimir Kugelev | 2008-07-29 |
| 7364412 | System, method, and apparatus for valve stop assembly in a reciprocating pump | Vladimir Kugelev | 2008-04-29 |
| 7219594 | Coolant system for piston and liner of reciprocating pumps | Vladimir Kugelev | 2007-05-22 |
| 7204525 | Flowline clamp connector | — | 2007-04-17 |
| 7096718 | Pressure testing apparatus | J. Allen Sutton | 2006-08-29 |
| 6978799 | Emergency pressure relief valve with enhanced reset | Vladimir Kugelev | 2005-12-27 |
| 6945569 | Enhanced durability hammer union | Juan M. Diaz | 2005-09-20 |
| 6481457 | Safety restraint assembly for high pressure flow line | Glenn P. Hayes, Timothy Andrew Gauss | 2002-11-19 |
| 6298882 | Explosion resistant blanket for flow line | Glenn P. Hayes | 2001-10-09 |
| 6209561 | Emergency pressure relief valve | Vladimir Kugelev | 2001-04-03 |
| 5823093 | Liner assembly with a fluid end cylinder | Vladimir Kugelev | 1998-10-20 |
| 5689862 | Safety clamp | Glenn P. Hayes | 1997-11-25 |
| 5246355 | Well service pumping assembly | Jimmie L. Yeary | 1993-09-21 |