Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5513706 | Method for improving formation stability surrounding a deviated wellbore | Alfred R. Jennings, Jr. | 1996-05-07 |
| 5492176 | Method for treating formations to plug flow | Charles S. Yeh, Larry Lucius Cox | 1996-02-20 |
| 5492177 | Method for consolidating a subterranean formation | Charles S. Yeh, Larry Lucius Cox | 1996-02-20 |
| 5435389 | Sand control agent and process | Paul Shu, Lloyd G. Jones, Charles S. Yeh | 1995-07-25 |
| 5222557 | Sand control agent and process | Paul Shu, William P. Donlon | 1993-06-29 |
| 5222556 | Acidizing method for gravel packing wells | William P. Donlon, Lloyd G. Jones, Charles S. Yeh | 1993-06-29 |
| 5219026 | Acidizing method for gravel packing wells | Paul Shu, William P. Donlon, Lloyd G. Jones | 1993-06-15 |
| 5211235 | Sand control agent and process | Paul Shu, Lloyd G. Jones, Charles S. Yeh | 1993-05-18 |
| 5209296 | Acidizing method for gravel packing wells | William P. Donlon, Lloyd G. Jones, Charles S. Yeh | 1993-05-11 |
| 5150754 | Aqueous and petroleum gel method for preventing water-influx | Craig H. Phelps | 1992-09-29 |
| 5101901 | Sand control agent and process | Paul Shu, William P. Donlon | 1992-04-07 |
| 5048607 | In-situ emulsion polymerization of ethylene derivatives | Craig H. Phelps, Mark L. Hoefner | 1991-09-17 |
| 5016713 | Method of preheating a heavy oil zone through existing bottom water and then diverting steam into the oil zone | J. Michael Sanchez | 1991-05-21 |
| 5002980 | Method for imparting selectivity to otherwise nonselective polymer control gels | Craig H. Phelps | 1991-03-26 |
| 4907656 | Method for preventing steam channelling into a non-aquifer bottom water zone | J. Michael Sanchez, Paul Shu, Bassem R. Alameddine | 1990-03-13 |
| 4901795 | Method for imparting selectivity to otherwise nonselective polymer control gels | Craig H. Phelps, Dennis H. Hoskin, Thomas O. Mitchell, Paul Shu | 1990-02-20 |
| 4856586 | Method for imparting selectivity to otherwise nonselective polymer profile control gels | Craig H. Phelps | 1989-08-15 |
| 4844163 | In-situ foaming of polymer profile control gels | Randy D. Hazlett | 1989-07-04 |
| 4532218 | Identification of carbon-containing ions adsorbed on ion-exchange resins by nuclear magnetic resonance spectroscopy | — | 1985-07-30 |
| 4418961 | Method for restoring contaminants to base levels in previously leached formations | Wilton F. Espenscheid | 1983-12-06 |
| 4378131 | Method for restoring molybdenum to base line level in leached formation | — | 1983-03-29 |