Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7878252 | Dual control line system and method for operating surface controlled sub-surface safety valve in a well | Roddie R. Smith, Richard C. Jones | 2011-02-01 |
| 7775269 | Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve | Roddie R. Smith, Imre I. Gazda | 2010-08-17 |
| 7475733 | Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve | Roddie R. Smith, Imre I. Gazda | 2009-01-13 |
| 7249635 | Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve | Roddie R. Smith, Imre I. Gazda | 2007-07-31 |
| 7032672 | Subsurface safety valve having a communication tool accessible non annular hydraulic chamber | Roddie R. Smith, Imre I. Gazda | 2006-04-25 |
| 6953093 | Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve | Roddie R. Smith, Imre I. Gazda | 2005-10-11 |
| 6880641 | Subsurface safety valve and method for communicating hydraulic fluid therethrough | Roddie R. Smith, Imre I. Gazda | 2005-04-19 |
| 6742595 | Subsurface safety valve lock out and communication tool and method for use of the same | Roddie R. Smith, Imre I. Gazda | 2004-06-01 |
| 6659185 | Subsurface safety valve lock out and communication tool and method for use of the same | Roddie R. Smith, Imre I. Gazda | 2003-12-09 |
| 6523614 | Subsurface safety valve lock out and communication tool and method for use of the same | Roddie R. Smith, Imre I. Gazda | 2003-02-25 |
| 6425413 | Valve with secondary load bearing surface | Glenn R. Davis | 2002-07-30 |
| 6289926 | Flapper valve assembly with seat having load bearing shoulder | — | 2001-09-18 |
| 6263910 | Valve with secondary load bearing surface | Glenn R. Davis | 2001-07-24 |
| 6227299 | Flapper valve with biasing flapper closure assembly | — | 2001-05-08 |
| 6196261 | Flapper valve assembly with seat having load bearing shoulder | — | 2001-03-06 |
| 6152232 | Underbalanced well completion | Alan B. Webb, Wade Meaders | 2000-11-28 |