Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10288184 | Metal reinforced seal plate for pilot actuated spool valve | Robert E. Smith, III, Frank Harold Hollister, Dane Tipton | 2019-05-14 |
| 10247322 | Metal reinforced seal plate for pilot actuated spool valve | Robert E. Smith, III, Frank Harold Hollister, Dane Tipton | 2019-04-02 |
| 9822895 | Metal reinforced seal plate for pilot actuated spool valve | Robert E. Smith, III, Frank Harold Hollister, Dane Tipton | 2017-11-21 |
| 9697326 | Topology graph optimization | Kelly Eric Bowman | 2017-07-04 |
| 9523262 | Method for autonomous control of a chemical injection system for oil and gas wells | Robert E. Smith, IV, Maurice Slot | 2016-12-20 |
| 9255465 | Method for autonomous control of a chemical injection system for oil and gas wells | Robert E. Smith, IV, Maurice Slot | 2016-02-09 |
| 8555914 | Method for autonomous control of a chemical injection systems for oil and gas wells | Robert E. Smith, IV, Maurice Slot | 2013-10-15 |
| 8262367 | Fault-tolerant chemical injection system for oil and gas wells | — | 2012-09-11 |
| 7520291 | Pressure-compensated, subsea chemical injection valve | — | 2009-04-21 |
| 7159616 | Dual path hydraulic coupling | Robert E. Smith, III | 2007-01-09 |
| D520247 | Liquid applicator head | — | 2006-05-09 |
| D519283 | Liquid applicator head assembly | — | 2006-04-25 |
| 6983803 | Equalizer valve and associated method for sealing a fluid flow | Preston Weintraub | 2006-01-10 |
| 6983922 | Piloted directional control valve | — | 2006-01-10 |
| 6973936 | Fluid injection system | — | 2005-12-13 |
| 6745838 | Chemical injection control system and method for multiple wells | — | 2004-06-08 |
| 6651696 | Relief valve | Rodney C. Hope, F. Harold Hollister | 2003-11-25 |
| 6571822 | Low blow down relief valve | Thomas W. Neugebauer | 2003-06-03 |
| 6568418 | Precision regulator | Rodney C. Hope, Thomas W. Neugebauer | 2003-05-27 |
| 6527010 | Single pilot dual pulse spool valve | — | 2003-03-04 |
| 6497251 | Hydraulic latching spool valve | — | 2002-12-24 |
| 6318400 | Low interflow hydraulic shuttle valve | Rodney C. Hope, F. Harold Hollister | 2001-11-20 |
| 5901749 | Three-way poppet valve | — | 1999-05-11 |
| 5771931 | High pressure wear resistant pilot valve | — | 1998-06-30 |
| 4856557 | Sliding metal seal valve mechanism | — | 1989-08-15 |