Issued Patents All Time
Showing 126–135 of 135 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688844 | Resilient well cement compositions and methods | Jiten Chatterji, Patty L. Totten, David D. Onan | 1997-11-18 |
| 5588489 | Lightweight well cement compositions and methods | Jiten Chatterji, James E. Griffith, Patty L. Totten | 1996-12-31 |
| 5569324 | Cementitious compositions | Patty L. Totten, Jiten Chatterji | 1996-10-29 |
| 5458195 | Cementitious compositions and methods | Patty L. Totten, Jiten Chatterji | 1995-10-17 |
| 5327968 | Utilizing drilling fluid in well cementing operations | David D. Onan, Dralen T. Terry, Patty L. Totten, Bobby G. Brake | 1994-07-12 |
| 5298069 | Acid removable low density well cement compositions and methods | Patty L. Totten | 1994-03-29 |
| 5295543 | Converting drilling fluids to cementitious compositions | Dralen T. Terry, David D. Onan, Patty L. Totten | 1994-03-22 |
| 5273580 | High temperature well cement compositions and methods | Patty L. Totten, Donald W. Lindsey | 1993-12-28 |
| 5213161 | Well cementing method using acid removable low density well cement compositions | Patty L. Totten | 1993-05-25 |
| 5184680 | High temperature well cement compositions and methods | Patty L. Totten, Donald W. Lindsey | 1993-02-09 |