Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829922 | Evaluating foamed cement under pressure and temperature | Ronald J. Patin, Dennis W. Gray, James H. Cantrell, Garland W. Davis, Wendell D. Riley | 2004-12-14 |
| 6767867 | Methods of treating subterranean zones penetrated by well bores | Jiten Chatterji, Roger S. Cromwell, Bobby J. King, Dennis W. Gray, Ronald J. Crook +5 more | 2004-07-27 |
| 6681856 | Methods of cementing in subterranean zones penetrated by well bores using biodegradable dispersants | Jiten Chatterji, Roger S. Cromwell | 2004-01-27 |