Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11078767 | Apparatus and method for potable water extraction from saline aquifers | Henry D. Tiffany, III, Steven L. Bryant, Gregory Allen Clark, Brian H. de Clare | 2021-08-03 |
| 10899693 | Alkoxylated co-solvents | Upali P. Weerasooriya | 2021-01-26 |
| 10876038 | Short hydrophobe anionic surfactants | Upali P. Weerasooriya | 2020-12-29 |
| 10190035 | Phenol-alkoxylate co-solvent surfactant composition | Upali P. Weerasooriya | 2019-01-29 |
| 10167421 | Phenol-alkoxylate co-solvent surfactant composition | Upali P. Weerasooriya | 2019-01-01 |
| 10106725 | Light co-solvent compositions | Upali P. Weerasooriya | 2018-10-23 |
| 9988346 | Large hydrophobe surfactants | Upali P. Weerasooriya, Peter Radford, Howard Stevenson | 2018-06-05 |
| 9862877 | Alkyl hydrophobe surfactants | Upali P. Weerasooriya | 2018-01-09 |
| 9783729 | Alkoxy carboxylate surfactants | Upali P. Weerasooriya | 2017-10-10 |
| 9353309 | Method for treating a formation with a solvent | Jimmie R. Baran, Jr., John D. Skildum, Vishal Bang, Mukul M. Shama | 2016-05-31 |
| 9296942 | Anionic polyalkoxy group comprising surfactants on basis of guerbet-alcohols, method of manufacture and use in enhanced oil recovery (EOR) applications | Upali P. Weerasooriya, Christian Bittner, Günter Oetter, Jack Tinsley, Christian Spindler +2 more | 2016-03-29 |
| 9206347 | Quaternary ammonium surfactants | Upali P. Weerasooriya, Kishore K. Mohanty | 2015-12-08 |
| 9175207 | Surfactant-less alkaline-polymer formulations for recovering reactive crude oil | Upali P. Weerasooriya | 2015-11-03 |
| 9127210 | Short chain alkylamine alkoxylate compositions | Upali P. Weerasooriya, Robin Jacques Matton, John Mitchell, Peter Roose | 2015-09-08 |
| 9121259 | Storing carbon dioxide and producing methane and geothermal energy from deep saline aquifers | Steven L. Bryant | 2015-09-01 |
| 9109152 | Compositions and methods for controlling the stability of ethersulfate surfactants at elevated temperatures | Upali P. Weerasooriya, Quoc P. Nguyen | 2015-08-18 |
| 8841241 | Anionic polyalkoxy group comprising surfactants on basis of guerbet-alcohols, method of manufacture and use in enhanced oil recovery (EOR) applications | Upali P. Weerasooriya, Christian Bittner, Guenter Oetter, Jack Tinsley, Christian Spindler +2 more | 2014-09-23 |
| 8822391 | Alkoxy carboxylate surfactants | Upali P. Weerasooriya | 2014-09-02 |
| 8459360 | Di-functional surfactants for enhanced oil recovery | Upali P. Weerasooriya, Quoc P. Nguyen, Larry N. Britton | 2013-06-11 |
| 8403050 | Method for treating a hydrocarbon-bearing formation with a fluid followed by a nonionic fluorinated polymeric surfactant | Jimmie R. Baran, Jr., Vishal Bang, Mukul Sharma | 2013-03-26 |
| 8372788 | Styrylphenol alkoxylate sulfate as a new surfactant composition for enhanced oil recovery applications | Upali P. Weerasooriya | 2013-02-12 |
| 8261825 | Methods for improving the productivity of oil producing wells | Jimmie R. Baran, Jr., Vishal Bang, Mukul Sharma | 2012-09-11 |
| 8211837 | Method of manufacture and use of large hydrophobe ether sulfate surfactants in enhanced oil recovery (EOR) applications | Upali P. Weerasooriya, Quoc P. Nguyen | 2012-07-03 |
| 8188012 | Process of using hard brine at high alkalinity for enhanced oil recovery (EOR) applications | Upali P. Weerasooriya | 2012-05-29 |
| 8138127 | Compositions and methods for treating a water blocked well using a nonionic fluorinated surfactant | Jimmie R. Baran, Jr., Vishal Bang, John D. Skildum, Mukul Sharma | 2012-03-20 |