Issued Patents All Time
Showing 101–113 of 113 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4997487 | High temperature set retarded well cement compositions and methods | Edward F. Vinson, Daniel L. Bour | 1991-03-05 |
| 4941536 | Set retarded cement compositions and methods for well cementing | Donald W. Lindsey, Dralen T. Terry | 1990-07-17 |
| 4806164 | Method of reducing fluid loss in cement compositions | — | 1989-02-21 |
| 4791989 | Low fluid loss salt saturated cement slurries, additives and methods | John F. Burkhalter | 1988-12-20 |
| 4742094 | Low fluid loss salt saturated cement slurries, additives and methods | John F. Burkhalter | 1988-05-03 |
| 4703801 | Method of reducing fluid loss in cement compositions which may contain substantial salt concentrations | Slaton E. Fry, Jerry D. Childs, Donald W. Lindsey | 1987-11-03 |
| 4700780 | Method of reducing fluid loss in cement compositions which may contain substantial salt concentrations | — | 1987-10-20 |
| 4676317 | Method of reducing fluid loss in cement compositions which may contain substantial salt concentrations | Slaton E. Fry, Jerry D. Childs, Donald W. Lindsey | 1987-06-30 |
| 4640942 | Method of reducing fluid loss in cement compositions containing substantial salt concentrations | — | 1987-02-03 |
| 4522653 | Salt cement dispersant and method of using same in cementing subterranean wellbore | S. Prabhakara Rao, Bobby G. Brake | 1985-06-11 |
| 4500357 | Oil field cementing methods and compositions | S. Prabhakara Rao | 1985-02-19 |
| 4461644 | Light weight composition and a method of sealing a subterranean formation | Jerry D. Childs, Joseph R. Murphey | 1984-07-24 |
| 4450009 | Method of preparing a light weight cement composition from sea water | Jerry D. Childs, Mary J. Taylor | 1984-05-22 |