Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8316941 | Method for single-stage treatment of siliceous subterranean formations | Diankui Fu, Stephen Davies, Murtaza Ziauddin, Zhijun Xiao, Bruno Lecerf +2 more | 2012-11-27 |
| 8312929 | Method for single-stage treatment of siliceous subterranean formations | Diankui Fu, Stephen Davies, Murtaza Ziauddin, Zhijun Xiao, Bruno Lecerf +1 more | 2012-11-20 |
| 7589050 | Composition comprising a fully dissolved non-HF fluoride source and method for treating a subterranean formation | Murtaza Ziauddin, Stephen Davies, Frank F. Chang | 2009-09-15 |
| 7540328 | Solid sandstone dissolver | J. Ernest Brown, John W. Still, Diankui Fu, Zhijun Xiao | 2009-06-02 |
| 7427584 | Treating composition | Mark Brady | 2008-09-23 |
| 7192908 | Composition and method for treating a subterranean formation | Murtaza Ziauddin, Stephen Davies, Frank F. Chang | 2007-03-20 |
| 7166560 | Generating Acid Downhole in Acid Fracturing | John W. Still, Keith Ingram Dismuke | 2007-01-23 |
| 6924255 | Composition and method for treating a subterranean formation | Frank F. Chang, Ronnie L. Thomas, Walter Dee Grant | 2005-08-02 |
| 6911418 | Method for treating a subterranean formation | — | 2005-06-28 |
| 6806236 | Composition and method for treating a subterranean formation | Frank F. Chang | 2004-10-19 |
| 6569814 | Fluids and techniques for hydrocarbon well completion | Mark Brady, Palathinkara S. Vinod | 2003-05-27 |
| 6521028 | Low hazard corrosion inhibitors and cleaning solutions using quaternary ammonium salts | — | 2003-02-18 |
| 6436880 | Well treatment fluids comprising chelating agents | — | 2002-08-20 |
| 6399547 | Well treatment fluids comprising mixed aldehydes | Donald G. Hill | 2002-06-04 |
| 6118000 | Methods for preparing quaternary ammonium salts | — | 2000-09-12 |
| 6068056 | Well treatment fluids comprising mixed aldehydes | Donald G. Hill | 2000-05-30 |
| 5679170 | Methods for removing iron oxide scale from interior surfaces of steel vessels using formic acid-citric acid mixtures | — | 1997-10-21 |
| 5529637 | Formic-carboxylic acid mixtures for removing iron oxide sclae from steel surfaces | — | 1996-06-25 |
| 5120471 | Process and composition for protecting chrome steel | Raymond J. Jasinski | 1992-06-09 |
| 5096618 | Process and composition for inhibiting high-temperature iron and steel corrosion | — | 1992-03-17 |
| 5013483 | Process and composition for inhibiting iron and steel corrosion | Fred Growcock, Victoria R. Lopp, Brian Dixon | 1991-05-07 |
| 4734259 | Mixtures of .alpha.,.beta.-unsaturated aldehides and surface active agents used as corrosion inhibitors in aqueous fluids | Frederick B. Growcock | 1988-03-29 |
| 4636327 | Aqueous acid composition and method of use | David A. Wilson | 1987-01-13 |
| 4623399 | Solvent for removing iron oxide deposits | — | 1986-11-18 |
| 4430128 | Aqueous acid composition and method of use | David A. Wilson | 1984-02-07 |