Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648073 | Retrievable sliding sleeve flow control valve for zonal isolation control system | Kerry D. Jernigan, Mark Crawford | 2003-11-18 |
| 6464004 | Retrievable well monitor/controller system | Mark Crawford, Kerry D. Jermigan | 2002-10-15 |
| 5275038 | Downhole reeled tubing inspection system with fiberoptic cable | Donald H. Perkins, Robert Arthur Rademaker | 1994-01-04 |
| 5205355 | Subsurface safety valves and method and apparatus for their operation | Marion H. Gay, Imre I. Gazda | 1993-04-27 |
| 5191173 | Electrical cable in reeled tubing | Malcolm N. Council, Willard J. Deese, E. G. Hoffman, Robert F. Bailey, David H. Neuroth | 1993-03-02 |
| 5170845 | Subsurface safety valves and method and apparatus for their operation | Marion H. Gay, Imre I. Gazda | 1992-12-15 |
| 4886114 | Electric surface controlled subsurface valve system | Donald H. Perkins, Thomas M. Deaton | 1989-12-12 |
| 4730677 | Method and system for maintenance and servicing of subsea wells | Joseph L. Pearce, John C. Gano, John H. Yonker, Robert L. Thurman, James O'Sullivan +4 more | 1988-03-15 |
| 4723606 | Surface controlled subsurface safety valve | Michael B. Vinzant, Ronald K. Churchman, Rennie L. Dickson, Roddie R. Smith | 1988-02-09 |
| 4583592 | Well test apparatus and methods | Imre I. Gazda | 1986-04-22 |
| 4515220 | Apparatus and method for rotating coil tubing in a well | Don C. Cox, Malcolm N. Council | 1985-05-07 |
| 4449587 | Surface controlled subsurface safety valves | Charles Rodenberger, Kevin Charles O'Malley | 1984-05-22 |
| RE31313 | Method and system for well testing | John V. Fredd | 1983-07-19 |
| 4258794 | Underwater completion habitat | Joseph L. Pearce, Sanford R. Dowden | 1981-03-31 |
| 4251176 | Well tubing handling apparatus | Malcolm N. Council | 1981-02-17 |