Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7923417 | Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications | Jeffrey L. Mundy, Fong Fong Foo, Rajesh Kumar Saini | 2011-04-12 |
| 7825073 | Treatment fluids comprising clarified xanthan and associated methods | Thomas D. Welton, Jeffery L. Mundy, Sean R. Beach, Richard W. Pauls, Phillip C. Harris +8 more | 2010-11-02 |
| 7363986 | Annular isolators for expandable tubulars in wellbores | Michael M. Brezinski, Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano +10 more | 2008-04-29 |
| 7252142 | Annular isolators for expandable tubulars in wellbores | Michael M. Brezinski, Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano +7 more | 2007-08-07 |
| 7143826 | Method for determining sand free production rate and simultaneously completing a borehole | Philip D. Nguyen | 2006-12-05 |
| 7100691 | Methods and apparatus for completing wells | Philip D. Nguyen, Ronald A. Gibson, David Lord, David E. McMechan | 2006-09-05 |
| 6981560 | Method and apparatus for treating a productive zone while drilling | Philip D. Nguyen | 2006-01-03 |
| 6854522 | Annular isolators for expandable tubulars in wellbores | Michael M. Brezinski, Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano +12 more | 2005-02-15 |
| 6830104 | Well shroud and sand control screen apparatus and completion method | Philip D. Nguyen, Ron Gibson, David Lord, David E. McMechan | 2004-12-14 |
| 6766858 | Method for managing the production of a well | Philip D. Nguyen | 2004-07-27 |
| 6749023 | Methods and apparatus for gravel packing, fracturing or frac packing wells | Philip D. Nguyen | 2004-06-15 |