Issued Patents All Time
Showing 176–200 of 248 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6448206 | Sealing subterranean zones | James E. Griffith, Ricky A. Cox, Bobby J. King, Roger S. Cromwell, John L. Dennis, Jr. | 2002-09-10 |
| 6417142 | Defoaming methods and compositions | Roger S. Cromwell, Bobby J. King, Frank Zamora | 2002-07-09 |
| 6401817 | Sealing subterranean zones | James E. Griffith, Ricky A. Cox, Bobby J. King, Roger S. Cromwell, John L. Dennis, Jr. | 2002-06-11 |
| 6367550 | Foamed well cement slurries, additives and methods | Roger S. Cromwell, Chad Brenneis, Bobby J. King, Dennis W. Gray, Frank Zamora | 2002-04-09 |
| 6367549 | Methods and ultra-low density sealing compositions for sealing pipe in well bores | Roger S. Cromwell, Bobby J. King, Dennis W. Gray, Ronald J. Crook, Frank Zamora | 2002-04-09 |
| 6364945 | Methods and compositions for forming permeable cement sand screens in well bores | Roger S. Cromwell, Baireddy R. Reddy, Bobby J. King, Philip D. Nguyen, David L. Brown | 2002-04-02 |
| 6350309 | Methods and compositions for cementing pipe strings in well bores | Roger S. Cromwell, Robert D. Kuhlman, Bobby J. King | 2002-02-26 |
| 6330917 | Resilient well cement compositions and methods | Roger S. Cromwell, Baireddy R. Reddy, Bobby J. King | 2001-12-18 |
| 6328106 | Sealing subterranean zones | James E. Griffith, Ricky A. Cox, Bobby J. King, Roger S. Cromwell, John L. Dennis, Jr. | 2001-12-11 |
| 6321841 | Methods of sealing pipe strings in disposal wells | Larry S. Eoff, Roger S. Cromwell, Bobby J. King | 2001-11-27 |
| 6315042 | Oil-based settable spotting fluid | James E. Griffith, Ricky A. Cox, John L. Dennis, Jr. | 2001-11-13 |
| 6308777 | Cementing wells with crack and shatter resistant cement | Roger S. Cromwell, Ronald J. Crook, Frank Zamora | 2001-10-30 |
| 6297202 | Defoaming compositions and methods | Roger S. Cromwell, Bobby J. King | 2001-10-02 |
| 6279652 | Heat insulation compositions and methods | David D. Onan, Roger S. Cromwell | 2001-08-28 |
| 6271181 | Sealing subterranean zones | Roger S. Cromwell, Bobby J. King | 2001-08-07 |
| 6268406 | Well cementing methods using compositions containing liquid polymeric additives | Frank Zamora, Bobby J. King, Rita McKinley | 2001-07-31 |
| 6258160 | Methods and compositions for grouting heat exchange pipe | Roger S. Cromwell, W. Andrew Liao, Jason Glen Bell | 2001-07-10 |
| 6244344 | Methods and compositions for cementing pipe strings in well bores | Roger S. Cromwell, Robert D. Kuhlman, Bobby J. King | 2001-06-12 |
| 6234251 | Resilient well cement compositions and methods | Roger S. Cromwell, Baireddy R. Reddy, Bobby J. King | 2001-05-22 |
| 6231664 | Well sealing compositions and methods | David D. Onan, Roger S. Cromwell, Bobby J. King | 2001-05-15 |
| 6227294 | Methods of cementing subterranean zones | Roger S. Cromwell, Bobby J. King, Dennis W. Gray, Darrell Chad Brenneis | 2001-05-08 |
| 6220354 | High strength foamed well cement compositions and methods | Bobby J. King, Frank Zamora, Clyde R. Anderson, Billy Bennett, Roger S. Cromwell | 2001-04-24 |
| 6209646 | Controlling the release of chemical additives in well treating fluids | Baireddy R. Reddy, Ronald J. Crook, Bobby J. King, Dennis W. Gray, Russell M. Fitzgerald +2 more | 2001-04-03 |
| 6210476 | Foamed cement compositions and methods | Roger S. Cromwell, Baireddy R. Reddy, Clyde R. Anderson, David E. McMechan | 2001-04-03 |
| 6202751 | Methods and compositions for forming permeable cement sand screens in well bores | Roger S. Cromwell, Baireddy R. Reddy, Bobby J. King, Philip D. Nguyen, David L. Brown | 2001-03-20 |