Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7128142 | Apparatus and methods for improved fluid displacement in subterranean formations | James F. Heathman, Sears T. Dealy, Dennis W. Gray | 2006-10-31 |
| 7128149 | Apparatus and methods for improved fluid displacement in subterranean formations | James F. Heathman, Sears T. Dealy, Dennis W. Gray | 2006-10-31 |
| 6829922 | Evaluating foamed cement under pressure and temperature | Ronald J. Patin, Dennis W. Gray, D. Chad Brenneis, Garland W. Davis, Wendell D. Riley | 2004-12-14 |
| H1932 | Wettability and fluid displacement in a well | James F. Heathman, J. Michael Wilson | 2001-01-02 |