Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE41118 | Annular isolators for expandable tubulars in wellbores | Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano, William David Henderson +8 more | 2010-02-16 |
| 7404437 | Annular isolators for expandable tubulars in wellbores | Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano, Paul Herman +7 more | 2008-07-29 |
| 7363986 | Annular isolators for expandable tubulars in wellbores | Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano, William David Henderson +10 more | 2008-04-29 |
| 7320367 | Annular isolators for expandable tubulars in wellbores | Ralph H. Echols, Gary P. Funkhouser, William David Henderson, Marion D. Kilgore, Ronald J. Powell +2 more | 2008-01-22 |
| 7299882 | Annular isolators for expandable tubulars in wellbores | Gregory B. Chitwood, Gary P. Funkhouser, John C. Gano, Jody R. McGlothen, Alex Procyk +4 more | 2007-11-27 |
| 7264047 | Annular isolators for expandable tubulars in wellbores | Gregory B. Chitwood, Gary P. Funkhouser, Jody R. McGlothen, Thomas W. Ray, Robert S. Taylor +1 more | 2007-09-04 |
| 7252142 | Annular isolators for expandable tubulars in wellbores | Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano, Paul Herman +7 more | 2007-08-07 |
| 6854522 | Annular isolators for expandable tubulars in wellbores | Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano, William David Henderson +12 more | 2005-02-15 |
| 6706668 | Electron transfer agents in well acidizing compositions and methods | — | 2004-03-16 |
| 6653260 | Electron transfer system for well acidizing compositions and methods | — | 2003-11-25 |
| 6534448 | Composition and method for acidizing wells and equipment without damaging precipitation | — | 2003-03-18 |
| 6525011 | Methods and acidizing compositions for reducing metal surface corrosion and sulfide precipitation | — | 2003-02-25 |
| 6415865 | Electron transfer agents in well acidizing compositions and methods | — | 2002-07-09 |
| 6315045 | Methods and acidizing compositions for reducing metal surface corrosion and sulfide precipitation | — | 2001-11-13 |
| 6225261 | Composition and method for controlling precipitation when acidizing wells | Tommy R. Gardner, Karen L. King, James L. Lane, Jr. | 2001-05-01 |
| 6056896 | Metal corrosion inhibitor for use in aqueous acid solutions | — | 2000-05-02 |
| 5976416 | Corrosion inhibited organic acid compositions and methods | — | 1999-11-02 |
| 5916484 | Metal corrosion inhibited organic acid compositions | — | 1999-06-29 |
| 5792420 | Metal corrosion inhibitor for use in aqueous acid solutions | — | 1998-08-11 |
| 5763368 | Corrosion inhibited well acidizing compositions and methods | — | 1998-06-09 |
| 5756004 | Quaternary ammonium compounds useful for inhibiting metal corrosion | — | 1998-05-26 |
| 5697443 | Method and composition for acidizing subterranean formations utilizing corrosion inhibitor intensifiers | Bhadra Desai | 1997-12-16 |
| 5674817 | Controlling iron in aqueous well fracturing fluids | Tommy R. Gardner, Weldon M. Harms, James L. Lane, Jr., Karen L. King | 1997-10-07 |
| 5622919 | Composition and method for controlling precipitation when acidizing wells | Tommy R. Gardner, Karen L. King, James L. Lane, Jr. | 1997-04-22 |
| 5264141 | Methods of reducing precipitation from acid solutions | Rick D. Gdanski | 1993-11-23 |