Issued Patents All Time
Showing 76–82 of 82 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6417142 | Defoaming methods and compositions | Jiten Chatterji, Roger S. Cromwell, Bobby J. King | 2002-07-09 |
| 6367550 | Foamed well cement slurries, additives and methods | Jiten Chatterji, Roger S. Cromwell, Chad Brenneis, Bobby J. King, Dennis W. Gray | 2002-04-09 |
| 6367549 | Methods and ultra-low density sealing compositions for sealing pipe in well bores | Jiten Chatterji, Roger S. Cromwell, Bobby J. King, Dennis W. Gray, Ronald J. Crook | 2002-04-09 |
| 6308777 | Cementing wells with crack and shatter resistant cement | Jiten Chatterji, Roger S. Cromwell, Ronald J. Crook | 2001-10-30 |
| 6268406 | Well cementing methods using compositions containing liquid polymeric additives | Jiten Chatterji, Bobby J. King, Rita McKinley | 2001-07-31 |
| 6220354 | High strength foamed well cement compositions and methods | Jiten Chatterji, Bobby J. King, Clyde R. Anderson, Billy Bennett, Roger S. Cromwell | 2001-04-24 |
| 6063738 | Foamed well cement slurries, additives and methods | Jiten Chatterji, Roger S. Cromwell, Bobby J. King | 2000-05-16 |