| 12441934 |
Viscosifying friction reducers |
Genyao Lin, Louis Villafane, Kailas B. Sawant, Shih-En Chen |
2025-10-14 |
|
| 11795376 |
Viscosifying friction reducers |
Genyao Lin, Louis Villafane, Kailas B. Sawant, Shih-Ruey T. Chen |
2023-10-24 |
|
| 11746277 |
Diluted cationic friction reducers |
Kailas B. Sawant, Louis Villafane, Shih-Ruey T. Chen, Randy Loeffler |
2023-09-05 |
|
| 11261361 |
Salt tolerant friction reducer |
Shih-Ruey T. Chen, Randy Loeffler |
2022-03-01 |
|
| 11162011 |
Diluted cationic friction reducers |
Kailas B. Sawant, Louis Villafane, Shih-Ruey T. Chen, Randy Loeffler |
2021-11-02 |
|
| 10711173 |
Salt tolerant friction reducer |
Shih-Ruey T. Chen, Randy Loeffler, Kailas B. Sawant |
2020-07-14 |
|
| 10584277 |
Water-in-oil emulsion composition and method of treating subterranean formation using same |
Shih-Ruey T. Chen |
2020-03-10 |
|
| 10385253 |
Salt tolerant friction reducer |
Shih-Ruey T. Chen, Randy Loeffler, 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 |
$12,681,000 |
| 9695350 |
Ampholyte polymeric compounds in subterranean applications |
HsinChen Chung, Yuntao Thomas Hu, Xiangnan Ye, Narongsak Tonmukayakul, Michael A. McCabe +2 more |
2017-07-04 |
|
| 8640774 |
Method of treating a formation |
Shih-Ruey T. Chen |
2014-02-04 |
|
| 8535651 |
Water soluble polymer complexes with surfactants |
Shih-Ruey T. Chen |
2013-09-17 |
|
| 8211414 |
Water soluble polymer complexes with surfactants |
Shih-Ruey T. Chen |
2012-07-03 |
|
| 8021516 |
Use of water-soluble polymer complexes in aqueous systems |
Shih-Ruey T. Chen, Valentino L. DeVito |
2011-09-20 |
|
| 7754794 |
Methods of treating keratin based substrates |
Shih-Ruey T. Chen, Valentino L. DeVito |
2010-07-13 |
|
| 7514007 |
Use of water-soluble polymer complexes in aqueous systems |
Shih-Ruey T. Chen, Valentino L. DeVito |
2009-04-07 |
|
| 7087556 |
Compositions for treating subterranean zones penetrated by well bores |
Shih-Ruey T. Chen, Jiten Chatterji, Valentino L. DeVito, Randy Loeffler, Kevin Smith |
2006-08-08 |
|
| 7001953 |
Water-soluble polymer complexes |
Shih-Ruey T. Chen, Valentino L. DeVito |
2006-02-21 |
|
| 6939536 |
Cosmetic compositions containing water-soluble polymer complexes |
Shih-Ruey T. Chen, Valentino L. DeVito |
2005-09-06 |
|
| 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 |
$15,971,000 |
| 6414080 |
Inverse emulsion polymer and production thereof |
Randy Loeffler, Shih-Ruey T. Chen, James Rak |
2002-07-02 |
$91,421,000 |
| 6110995 |
Process for preparing novel high solids non-aqueous polymer compositions |
Wood E. Hunter, Randy Loeffler |
2000-08-29 |
$140,280,000 |
| 5589525 |
Process for preparing novel high solids non-aqueous polymer compositions |
Wood E. Hunter, Randy Loeffler |
1996-12-31 |
$155,915,000 |
| 5480921 |
Process for preparing novel high solids non-aqueous polymer compositions |
Wood E. Hunter, Randy Loeffler |
1996-01-02 |
$123,008,000 |