Issued Patents All Time
Showing 126–148 of 148 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6843841 | Preventing flow through subterranean zones | Baireddy R. Reddy | 2005-01-18 |
| 6837316 | Methods of consolidating formations | B. Raghava Reddy, Donald L. Whitfill, J. Michael Wilson, Denise Berryhill, Russel Fitzgerald +2 more | 2005-01-04 |
| 6823940 | Methods of consolidating formations and forming a chemical casing | B. Raghava Reddy, Donald L. Whitfill, J. Michael Wilson, Denise Berryhill, Russel Fitzgerald +2 more | 2004-11-30 |
| 6822061 | Well cement additives, compositions and methods | B. Raghava Reddy | 2004-11-23 |
| 6799636 | Methods and compositions for cementing in wellbores | Gary P. Funkhouser, Lewis R. Norman | 2004-10-05 |
| 6764981 | Well treatment fluid and methods with oxidized chitosan-based compound | B. Raghava Reddy | 2004-07-20 |
| 6743288 | Well cement additives, compositions and methods | B. Raghava Reddy | 2004-06-01 |
| 6739806 | Cement compositions with improved fluid loss characteristics and methods of cementing in subterranean formations | Michael J. Szymanski, John M. Wilson, Samuel J. Lewis | 2004-05-25 |
| 6715552 | Well cementing methods and compositions | Krista L. Keener | 2004-04-06 |
| 6702044 | Methods of consolidating formations or forming chemical casing or both while drilling | B. Raghava Reddy, Donald L. Whitfill, J. Michael Wilson, Denise Berryhill, Russel Fitzgerald +2 more | 2004-03-09 |
| 6607035 | Preventing flow through subterranean zones | Baireddy R. Reddy | 2003-08-19 |
| 6497283 | Well cement additives, compositions and methods | B. Raghava Reddy | 2002-12-24 |
| 6476169 | Methods of reducing subterranean formation water permeability | B. Raghava Reddy, Eldon D. Dalrymple | 2002-11-05 |
| 6364016 | Methods of reducing the water permeability of subterranean formations | Eldon D. Dalrymple, Baireddy R. Reddy, David L. Brown, Paul Brown | 2002-04-02 |
| 6321841 | Methods of sealing pipe strings in disposal wells | Jiten Chatterji, Roger S. Cromwell, Bobby J. King | 2001-11-27 |
| 6220350 | High strength water soluble plug | Lance E. Brothers | 2001-04-24 |
| 6187839 | Methods of sealing compositions and methods | David L. Brown | 2001-02-13 |
| 6176315 | Preventing flow through subterranean zones | Baireddy R. Reddy, Jiten Chatterji, San Tran, E. Dwyann Dalrymple | 2001-01-23 |
| 5501276 | Drilling fluid and filter cake removal methods and compositions | Jim D. Weaver, Krishna M. Ravi, Rick D. Gdanski, J. Michael Wilson | 1996-03-26 |
| 5368642 | Functionalized polymers containing amine groupings and their use as retarders in cement slurries | Klein A. Rodrigues | 1994-11-29 |
| 5339903 | Method for control of gas migration in well cementing | Bill W. Loughridge | 1994-08-23 |
| 5290357 | Acetone/formaldehyde/cyanide resins | — | 1994-03-01 |
| 5264470 | Set retarding additives, cement compositions and methods | — | 1993-11-23 |