| 11746277 |
Diluted cationic friction reducers |
Kailas B. Sawant, Louis Villafane, Kevin W. Frederick, Shih-Ruey T. Chen |
2023-09-05 |
| 11261361 |
Salt tolerant friction reducer |
Kevin W. Frederick, Shih-Ruey T. Chen |
2022-03-01 |
| 11162011 |
Diluted cationic friction reducers |
Kailas B. Sawant, Louis Villafane, Kevin W. Frederick, Shih-Ruey T. Chen |
2021-11-02 |
| 10711173 |
Salt tolerant friction reducer |
Kevin W. Frederick, Shih-Ruey T. Chen, Kailas B. Sawant |
2020-07-14 |
| 10385253 |
Salt tolerant friction reducer |
Kevin W. Frederick, Shih-Ruey T. Chen, Kailas B. Sawant |
2019-08-20 |
| 9816022 |
Ampholyte polymeric compounds in subterranean applications |
HsinChen Chung, Yuntao Thomas Hu, Xiangnan Ye, Narongsak Tonmukayakul, Michael A. McCabe +2 more |
2017-11-14 |
| 9695350 |
Ampholyte polymeric compounds in subterranean applications |
HsinChen Chung, Yuntao Thomas Hu, Xiangnan Ye, Narongsak Tonmukayakul, Michael A. McCabe +2 more |
2017-07-04 |
| 7087556 |
Compositions for treating subterranean zones penetrated by well bores |
Shih-Ruey T. Chen, Jiten Chatterji, Valentino L. DeVito, Kevin W. Frederick, Kevin Smith |
2006-08-08 |
| 6767867 |
Methods of treating subterranean zones penetrated by well bores |
Jiten Chatterji, Roger S. Cromwell, Bobby J. King, D. Chad Brenneis, Dennis W. Gray +5 more |
2004-07-27 |
| 6691715 |
Water soluble polymer composition and method of use |
Gary F. Matz, Shih-Ruey T. Chen, Allan L. Melby, Nicholas F. Vozza |
2004-02-17 |
| 6414080 |
Inverse emulsion polymer and production thereof |
Shih-Ruey T. Chen, Kevin W. Frederick, James Rak |
2002-07-02 |
| 6110995 |
Process for preparing novel high solids non-aqueous polymer compositions |
Wood E. Hunter, Kevin W. Frederick |
2000-08-29 |
| 5589525 |
Process for preparing novel high solids non-aqueous polymer compositions |
Wood E. Hunter, Kevin W. Frederick |
1996-12-31 |
| 5480921 |
Process for preparing novel high solids non-aqueous polymer compositions |
Wood E. Hunter, Kevin W. Frederick |
1996-01-02 |