Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11174446 | Winterized pour point depressants | Lingling Li, Tiara Elizabeth O'Neal, Chandrashekhar Yeshwant Khandekar | 2021-11-16 |
| 10308866 | Synergistic effect of cosurfactants on the rheological performance of drilling, completion and fracturing fluids | Lingling Li | 2019-06-04 |
| 10066149 | Delayed breaker for viscoelastic surfactant-based fluids | Lingling Li, Nick Henry Wolf, Jian Zhou | 2018-09-04 |
| 9341052 | Thickened viscoelastic fluids and uses thereof | Michael J. Engel, John Douglas Nowak, Jian Zhou, Xiaoyu Wang | 2016-05-17 |
| RE41585 | Method for controlling the rheology of an aqueous fluid and gelling agent therefor | Robert F. Farmer, Andress K. Doyle, Glenda Vale, Michael Hoey, Randy E. Dobson | 2010-08-24 |
| 7619103 | Arylation and the skeletal isomerization of fatty acid and alkyl esters thereof using metal ion exchanged solid materials as catalyst | Zongchao Zhang, Shuguang Zhang | 2009-11-17 |
| 6972274 | Method of improving the permeability of an underground petroleum-containing formation | Alberto Slikta, Andress K. Johnson | 2005-12-06 |
| 6787592 | Organoclay compositions prepared from ester quats and composites based on the compositions | Clois E. Powell, Michael Hoey | 2004-09-07 |
| 6506710 | Viscoelastic surfactants and compositions containing same | Michael Hoey, Ralph Franklin, Douglas M. Lucas, Maurice Dery, Randy E. Dobson +3 more | 2003-01-14 |
| 6239183 | Method for controlling the rheology of an aqueous fluid and gelling agent therefor | Robert F. Farmer, Andress K. Doyle, Glenda Vale, Michael Hoey, Randy E. Dobson | 2001-05-29 |
| 6013115 | Fuel additive compositions for simultaneously reducing intake valve and combustion chamber deposits | Michael D. Kanakia, Ralph Franklin, Dale S. Steichen | 2000-01-11 |
| 5979555 | Surfactants for hydraulic fractoring compositions | Michael Hoey, Ralph Franklin, Glenda del Carmen Vale, Foad Mozayeni | 1999-11-09 |
| 5964907 | Fuel compositions containing esteramines | Robert F. Farmer, Ralph Franklin, Michael D. Kanakia | 1999-10-12 |
| 5663111 | Organoclay compositions | Michael Hoey, Clois E. Powell | 1997-09-02 |
| 5476960 | .alpha.aminonitriles derived from reaction of carbonyl compounds and fatty aklyl alkylene diamines | Alison A. Fleming, Robert F. Farmer | 1995-12-19 |
| 5374763 | .alpha.-aminodinitriles containing fatty alkyl C.sub.12 to C.sub.22 group | Alison A. Fleming, Robert F. Farmer | 1994-12-20 |
| 5374762 | .alpha.-aminomononitriles containing fatty alkyl C.sub.12 to C.sub.22 group | Alison A. Fleming, Robert F. Farmer | 1994-12-20 |
| 5371265 | .alpha.-aminodinitriles containing fatty alkyl C.sub.12 to C.sub.22 group | Alison A. Fleming, Robert F. Farmer | 1994-12-06 |
| 5321161 | Hydrogenation of nitriles by a tungsten carbide catalyst | Willem Vreugdenhil, Fawzy G. Sherif, Johst H. Burk | 1994-06-14 |
| 5319126 | .alpha.-aminonitriles derived from fatty alkyl alkylene diamines | Alison A. Fleming, Robert F. Farmer | 1994-06-07 |