Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10184076 | Internal olefin sulfonate composition | James Laurel Buechele, Hendrik Dirkzwager, Willem Johan Louis Genuit, Jeremiah Michael Purcell, Catherine Semien +1 more | 2019-01-22 |
| 10144863 | Method for predicting the optimal salinity of internal olefin sulfonate compositions | Hendrik Dirkswager, Carmen Geraldine REZNIK, Sonja Geib, Sjoerd Reindert VAN KUIJK, James Laurel Buechele | 2018-12-04 |
| 10030194 | Method for enhanced hydrocarbon recovery | James Laurel Buechele, Hendrik Dirkzwager, Robert Hardy Ellison, Johan Paul Smit | 2018-07-24 |
| 10000688 | Composition and method for enhanced hydrocarbon recovery | Hendrik Dirkzwager, Robert Moene, Reinaldo C. Navarrete, Kirk Herbert Raney | 2018-06-19 |
| 9732267 | Composition for enhanced hydrocarbon recovery from a formation | Marten Adriaan Buijse, Marinus Cornelis Grutters, Robert Moene, Reinaldo C. Navarrete, Thomas Carl Semple +1 more | 2017-08-15 |
| 9688621 | Process for preparing an internal olefin sulfonate | Hendrik Dirkzwager, Robert Moene, Jasper Roelf Smit | 2017-06-27 |
| 9441148 | Method and composition for enhanced hydrocarbon recovery | Robert Hardy Ellison, Marinus Johannes Faber, Khrystyna Groen, Robert Moene, Quoc An On | 2016-09-13 |
| 9315436 | Nonyl alcohols with a low degree of branching and their derivatives | James Grace CRUMP, Paul Theodore Sharko | 2016-04-19 |
| 9284481 | Method and composition for enhanced oil recovery | Hendrik Dirkzwager, Quoc An On, Johan Paul Smit, Jasper Roelf Smit | 2016-03-15 |
| 9221750 | Process for preparing an internal olefin sulfonate | Hendrik Dirkzwager, Robert Moene | 2015-12-29 |
| 9187688 | Method and composition for enhanced hydrocarbon recovery from a formation containing a crude oil with specific solubility groups and chemical families | Marten Adriaan Buijse, Marinus Cornelis Grutters, Robert Moene, Reinaldo C. Navarrete, Thomas Carl Semple +1 more | 2015-11-17 |
| 9150492 | Nonyl alcohols with a low degree of branching and their derivatives | Paul Theodore Sharko, James Grace CRUMP | 2015-10-06 |
| 8940668 | Method and composition for enhanced hydrocarbons recovery from a very high salinity, high temperature formation | Kirk Herbert Raney, Thomas Carl Semple, Paul Gregory Shpakoff, Johan Paul Smit, Jasper Roelf Smit | 2015-01-27 |
| 8759261 | Method and composition for enhanced hydrocarbons recovery | Kirk Herbert Raney, Thomas Carl Semple, Paul Gregory Shpakoff, Johan Paul Smit, Jasper Roelf Smit | 2014-06-24 |
| 8513168 | Method and composition for enhanced hydrocarbons recovery | Kirk Herbert Raney, Thomas Carl Semple, Paul Gregory Shpakoff, Johan Paul Smit | 2013-08-20 |