Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6591910 | Methods and compositions for cementing subterranean zones | Jiten Chatterji, D. Chad Brenneis, Krista L. Keener | 2003-07-15 |
| 6554071 | Encapsulated chemicals for use in controlled time release applications and methods | Baireddy R. Reddy, Ronald J. Crook, Russell M. Fitzgerald, Bradley L. Todd, Steven B. Laramay | 2003-04-29 |
| 6547871 | Foamed well cement slurries, additives and methods | Jiten Chatterji, Roger S. Cromwell, Chad Brenneis, Bobby J. King, Frank Zamora | 2003-04-15 |
| 6527051 | Encapsulated chemicals for use in controlled time release applications and methods | Baireddy R. Reddy, Ronald J. Crook, Russell M. Fitzgerald, Bradley L. Todd, Steven B. Laramay | 2003-03-04 |
| 6478868 | Early-enhanced strength cement compositions and methods | Baireddy R. Reddy, Ronald J. Crook, Bryan K. Waugh, Russell M. Fitzgerald, Brent E. Traxel | 2002-11-12 |
| 6444316 | Encapsulated chemicals for use in controlled time release applications and methods | Baireddy R. Reddy, Ronald J. Crook, Russell M. Fitzgerald, Bradley L. Todd, Steven B. Laramay | 2002-09-03 |
| 6367550 | Foamed well cement slurries, additives and methods | Jiten Chatterji, Roger S. Cromwell, Chad Brenneis, Bobby J. King, Frank Zamora | 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, Ronald J. Crook, Frank Zamora | 2002-04-09 |
| 6227294 | Methods of cementing subterranean zones | Jiten Chatterji, Roger S. Cromwell, Bobby J. King, Darrell Chad Brenneis | 2001-05-08 |
| 6209646 | Controlling the release of chemical additives in well treating fluids | Baireddy R. Reddy, Ronald J. Crook, Jiten Chatterji, Bobby J. King, Russell M. Fitzgerald +2 more | 2001-04-03 |
| 6055874 | Apparatus and method for simulating well bore conditions | David D. Onan, Russell M. Fitzgerald, Johnny W. Johnson | 2000-05-02 |
| 6019835 | Cement compositions and biodegradable dispersants therefor | Jiten Chatterji, D. Chad Brenneis, Stuart E. Lebo, Jr., Stephen L. Dickman | 2000-02-01 |
| 5972103 | Universal well cement additives and methods | Sudhir Mehta, Richard Jones, William J. Caveny, Rickey L. Morgan, Jiten Chatterji | 1999-10-26 |
| 5968255 | Universal well cement additives and methods | Sudhir Mehta, Richard R. Jones, William J. Caveny, Rickey L. Morgan, Jiten Chatterji | 1999-10-19 |
| 4823594 | Container for a fluid to be tested under pressure | — | 1989-04-25 |