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Methods and compositions for viscosifying heavy aqueous brines
Grant 9,062,238 - Kesavan , et al. June 23, 2 | 2015-06-23 |
Process for making polyglycerol ethers of fatty alcohols
Grant 9,035,104 - Dahanayake , et al. May 19, 2 | 2015-05-19 |
Enhanced foam stability applications and methods
Grant 8,985,206 - Morvan , et al. March 24, 2 | 2015-03-24 |
Environmentally Friendly Solvent Systems/Surfactant Systems For Drilling Fluids
App 20140005079 - DAHANAYAKE; Manilal S. ; et al. | 2014-01-02 |
Enhanced Foam Stability Applications And Methods
App 20120285694 - MORVAN; Mikel ; et al. | 2012-11-15 |
Process for making polyglycerol ethers of fatty alcohols
App 20120215031 - Dahanayake; Manilal S. ; et al. | 2012-08-23 |
Cleaning compositions incorporating green solvents and methods for use
Grant 8,222,194 - Trivedi , et al. July 17, 2 | 2012-07-17 |
Demulsifiers and methods for use in pharmaceutical applications
Grant 8,133,924 - Talingting-Pabalan , et al. March 13, 2 | 2012-03-13 |
Viscoelastic Surfactant Fluids And Related Methods Of Use
App 20110092398 - Dahanayake; Manilal S. ; et al. | 2011-04-21 |
Methods and compositions for viscosifying heavy aqueous brines
App 20100311621 - Kesavan; Subramanian ; et al. | 2010-12-09 |
Methods for recovering oil from an oil reservoir
Grant 7,789,143 - Dahanayake , et al. September 7, 2 | 2010-09-07 |
Methods for recovering oil from an oil reservoir
Grant 7,789,144 - Dahanayake , et al. September 7, 2 | 2010-09-07 |
Demulsifiers in solvent base for separating emulsions and methods of use
Grant 7,786,179 - Talingting-Pabalan , et al. August 31, 2 | 2010-08-31 |
Method for recovering oil from an oil reservoir
Grant 7,784,540 - Dahanayake , et al. August 31, 2 | 2010-08-31 |
Methods for recovering oil from an oil reservoir
Grant 7,779,913 - Dahanayake , et al. August 24, 2 | 2010-08-24 |
Methods for recovering oil from an oil reservoir
Grant 7,770,642 - Dahanayake , et al. August 10, 2 | 2010-08-10 |
Composition and method for thickening heavy aqueous brines with cationic guar
Grant 7,629,296 - Dahanayake , et al. December 8, 2 | 2009-12-08 |
Cleaning compositions incorporating green solvents and methods for use
App 20090281012 - Trivedi; Satyen ; et al. | 2009-11-12 |
Demulsifiers and methods for use in pharmaceutical applications
App 20090209664 - Talingting-Pabalan; Ruela ; et al. | 2009-08-20 |
Demulsifiers in solvent base for separating emulsions and methods of use
App 20090149557 - Talingting-Pabalan; Ruela ; et al. | 2009-06-11 |
Methods for recovering oil from an oil reservoire
App 20090065204 - Dahanayake; Manilal S. ; et al. | 2009-03-12 |
Methods for recovering oil from an oil reservoir
App 20090065205 - Dahanayake; Manilal S. ; et al. | 2009-03-12 |
Methods for recovering oil from an oil reservoir
App 20090065203 - Dahanayake; Manilal S. ; et al. | 2009-03-12 |
Method for recovering oil from an oil reservoir
App 20090056942 - Dahanayake; Manilal S. ; et al. | 2009-03-05 |
Methods for recovering oil from an oil reservoir
App 20090056943 - Dahanayake; Manilal S. ; et al. | 2009-03-05 |
Methods for recovering oil from an oil reservoir
Grant 7,461,694 - Dahanayake , et al. December 9, 2 | 2008-12-09 |
Method of recycling fracturing fluids using a self-degrading foaming composition
App 20080200351 - Dahanayake; Manilal S. ; et al. | 2008-08-21 |
Method of recycling fracturing fluids using a self-degrading foaming composition
Grant 7,404,442 - Dahanayake , et al. July 29, 2 | 2008-07-29 |
Rheology enhancers in non-oilfield applications
App 20070244204 - Prat; Evelyne ; et al. | 2007-10-18 |
Viscoelastic surfactant fluids having enhanced shear recovery, rheology and stability performance
Grant 7,279,446 - Colaco , et al. October 9, 2 | 2007-10-09 |
Composition and method for thickening heavy aqueous brines
App 20070111897 - Dahanayake; Manilal S. ; et al. | 2007-05-17 |
Methods for recovering oil from an oil reservoir
App 20070107897 - Dahanayake; Manilal S. ; et al. | 2007-05-17 |
Method of recycling fracturing fluids using a self-degrading foaming composition
App 20060260815 - Dahanayake; Manilal S. ; et al. | 2006-11-23 |
Viscoelastic surfactant fluids having enhanced shear recovery, rheology and stability performance
App 20060105919 - Colaco; Allwyn ; et al. | 2006-05-18 |
Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid
App 20060019836 - Li; Fang ; et al. | 2006-01-26 |
Viscoelastic surfactant fluids and related methods of use
Grant 6,831,108 - Dahanayake , et al. December 14, 2 | 2004-12-14 |
Surfactant compositions with enhanced soil release properties containing a cationic gemini surfactant
Grant 6,358,914 - Gabriel , et al. March 19, 2 | 2002-03-19 |
Nonionic gemini surfactants
Grant 6,204,297 - Tracy , et al. March 20, 2 | 2001-03-20 |
Anionic surfactants having multiple hydrophobic and hydrophilic groups
Grant 6,121,222 - Li , et al. September 19, 2 | 2000-09-19 |
Recovery and reuse of sugar-derived nonionic surfactants from aqueous solutions
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Nonionic gemini surfactants
Grant 5,945,393 - Tracy , et al. August 31, 1 | 1999-08-31 |
Nonionic gemini surfactants
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Aqueous dispersion of a surface active polymer having enhanced performance properties
Grant 5,686,024 - Dahanayake , et al. November 11, 1 | 1997-11-11 |
Low viscosity defoaming/antiforming formulations
Grant 5,045,232 - Dahanayake September 3, 1 | 1991-09-03 |
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