Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9920273 | Polyalkylene glycol-grafted polycarboxylate suspension and dispersing agent for cutting fluids and slurries | Yi Zhu, Wanglin Yu, Daniel A. Aguilar, Brad Wurm | 2018-03-20 |
| 9732268 | Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid | Manilal S. Dahanayake, Allwyn Colaco | 2017-08-15 |
| 9217118 | Polyalkylene glycol-grafted polycarboxylate suspension and dispersing agent for cutting fluids and slurries | Linda Zhu, Wanglin Yu, Daniel A. Aguilar, David B. Wurm | 2015-12-22 |
| 8524642 | Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid | Manilal S. Dahanayake, Allwyn Colaco | 2013-09-03 |
| 8124570 | Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid | Manilal S. Dahanayake, Allwyn Colaco | 2012-02-28 |
| 8022016 | Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid | Manilal S. Dahanayake, Allwyn Colaco | 2011-09-20 |
| 7772164 | Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid | Manilal S. Dahanayake, Allwyn Colaco | 2010-08-10 |
| 7378378 | Rheology enhancers | Yiyan Chen, Jesse Lee, Manilal S. Dahanayake, Robert Tillotson, Allwyn Colaco | 2008-05-27 |
| 7279446 | Viscoelastic surfactant fluids having enhanced shear recovery, rheology and stability performance | Allwyn Colaco, Jean-Pierre Marchand, Manilal S. Dahanayake | 2007-10-09 |
| 6476168 | Emulsions having activating agents of alkoxylates of 6, 6-dimethylbicyclo [3.1.1] hept-2-ene-2-ethanol | Manilal S. Dahanayake, Jean-Luc Joye | 2002-11-05 |