Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9222013 | Water-in-oil microemulsions for oilfield applications | David Scott Morrison | 2015-12-29 |
| 9200192 | Compositions and methods for enhancement of production of liquid and gaseous hydrocarbons | Andrei Zelenev, Bill Zhou, Nathan L. Lett, Keith Ingram Dismuke, Glenn S. Penny | 2015-12-01 |
| 9068108 | Methods and compositions for stimulating the production of hydrocarbons from subterranean formations | Randal M. Hill, Nathan L. Lett, Maria Elizabeth Green | 2015-06-30 |
| 8916508 | Drag-reducing copolymer compositions | Earl Parnell, Todd Sanner, Marlin D. Holtmyer, David Philpot, Andrei Zelenev +2 more | 2014-12-23 |
| 8865632 | Drag-reducing copolymer compositions | Earl Parnell, Todd Sanner, Marlin D. Holtmyer, David Philpot, Andrei Zelenev +2 more | 2014-10-21 |