Issued Patents All Time
Showing 201–225 of 248 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6176315 | Preventing flow through subterranean zones | Baireddy R. Reddy, Larry S. Eoff, San Tran, E. Dwyann Dalrymple | 2001-01-23 |
| 6156808 | Defoaming compositions and methods | Roger S. Cromwell, Bobby J. King | 2000-12-05 |
| 6138759 | Settable spotting fluid compositions and methods | James E. Griffith, Ricky A. Cox, Bryan K. Waugh | 2000-10-31 |
| 6098711 | Compositions and methods for sealing pipe in well bores | Roger S. Cromwell, David D. Onan, Bobby J. King | 2000-08-08 |
| 6068055 | Well sealing compositions and methods | David D. Onan, Roger S. Cromwell, Bobby J. King | 2000-05-30 |
| 6069117 | Foamed resin compositions for sealing subterranean zones | David D. Onan, Roger S. Cromwell | 2000-05-30 |
| 6063738 | Foamed well cement slurries, additives and methods | Roger S. Cromwell, Frank Zamora, Bobby J. King | 2000-05-16 |
| 6059036 | Methods and compositions for sealing subterranean zones | Lewis R. Norman, David D. Onan, Bobby J. King, Roger S. Cromwell | 2000-05-09 |
| 6059035 | Subterranean zone sealing methods and compositions | David D. Onan, Bobby J. King, Roger S. Cromwell | 2000-05-09 |
| 6019835 | Cement compositions and biodegradable dispersants therefor | D. Chad Brenneis, Dennis W. Gray, Stuart E. Lebo, Jr., Stephen L. Dickman | 2000-02-01 |
| 6012524 | Remedial well bore sealing methods and compositions | David D. Onan, Roger S. Cromwell | 2000-01-11 |
| 6006836 | Methods of sealing plugs in well bores | David D. Onan, Patty L. Onan, Roger S. Cromwell, Bobby J. King | 1999-12-28 |
| 6006835 | Methods for sealing subterranean zones using foamed resin | David D. Onan, Roger S. Cromwell | 1999-12-28 |
| 5972103 | Universal well cement additives and methods | Sudhir Mehta, Richard Jones, William J. Caveny, Rickey L. Morgan, Dennis W. Gray | 1999-10-26 |
| 5968879 | Polymeric well completion and remedial compositions and methods | David D. Onan, Roger S. Cromwell | 1999-10-19 |
| 5968255 | Universal well cement additives and methods | Sudhir Mehta, Richard R. Jones, William J. Caveny, Rickey L. Morgan, Dennis W. Gray | 1999-10-19 |
| 5969006 | Remedial well bore sealing methods | David D. Onan, Bobby J. King, Roger S. Cromwell, Patty L. Onan | 1999-10-19 |
| 5964293 | Well completion methods using rubber latex compositions in subterranean formations containing salt zones | James F. Heathman, Bobby J. King | 1999-10-12 |
| 5957204 | Method of sealing conduits in lateral well bores | David D. Onan, Roger S. Cromwell, Bobby J. King | 1999-09-28 |
| 5945387 | Polymeric well completion and remedial compositions and methods | David D. Onan, Roger S. Cromwell | 1999-08-31 |
| 5911282 | Well drilling fluids containing epoxy sealants and methods | David D. Onan, Bobby J. King, Roger S. Cromwell, Patty L. Onan | 1999-06-15 |
| 5909774 | Synthetic oil-water emulsion drill-in fluid cleanup methods | James E. Griffith, Bobby J. King, Bryan K. Waugh, Patty L. Onan | 1999-06-08 |
| 5897699 | Foamed well cement compositions, additives and methods | David D. Onan, Roger S. Cromwell, Bobby J. King | 1999-04-27 |
| 5875845 | Methods and compositions for sealing pipe strings in well bores | David D. Onan, Roger S. Cromwell | 1999-03-02 |
| 5875846 | Methods of modifying subterranean strata properties | David D. Onan, Patty L. Onan, Roger S. Cromwell, Bobby J. King | 1999-03-02 |