Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829922 | Evaluating foamed cement under pressure and temperature | Ronald J. Patin, Dennis W. Gray, James H. Cantrell, D. Chad Brenneis, Garland W. Davis | 2004-12-14 |
| 6770604 | High temperature viscosifying and fluid loss controlling additives for well cements, well cement compositions and methods | B. Raghava Reddy | 2004-08-03 |
| 5332041 | Set-activated cementitious compositions and methods | David D. Onan, Dralen T. Terry | 1994-07-26 |
| 5293938 | Well completion and remedial methods utilizing cement-ladened rubber | David D. Onan, Garland W. Davis, Roger S. Cromwell | 1994-03-15 |
| 5263797 | Soil-cement compositions and methods | Kurt O. Lindstrom | 1993-11-23 |
| 5151203 | Composition and method for cementing a well | Jerry D. Childs | 1992-09-29 |