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, Wendell D. Riley | 2004-12-14 |
| 5871577 | Methods of retarding cementitious compositions | Jiten Chatterji, Rickey L. Morgan | 1999-02-16 |
| 5711383 | Cementitious well drilling fluids and methods | Dralen T. Terry, Bobby J. King, Jiten Chatterji, David D. Onan, Patty L. Totten | 1998-01-27 |
| 5672203 | Set retarded cementing compositions and methods | Jiten Chatterji, Rickey L. Morgan | 1997-09-30 |
| 5293938 | Well completion and remedial methods utilizing cement-ladened rubber | David D. Onan, Roger S. Cromwell, Wendell D. Riley | 1994-03-15 |
| 5159980 | Well completion and remedial methods utilizing rubber latex compositions | David D. Onan, Roger S. Cromwell | 1992-11-03 |