Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10519362 | Single-well diagnostics and increased oil recovery by oil injection and sequential waterflooding | Sheena Xina Xie, Nina Loahardjo | 2019-12-31 |
| 10240311 | Contraction and confinement of oil slicks on water, including water where ice is present, using non-ionic surfactants | Koichi Takamura, Nina Loahardjo, Winoto | 2019-03-26 |
| 9797109 | Retraction of oil slicks using surfactants | Koichi Takamura, Nina Loahardjo, Winoto Winoto | 2017-10-24 |
| 8413718 | Oil recovery by sequential waterflooding with oil reinjection and oil relocation | Sheena Xina Xie, Nina Loahardjo | 2013-04-09 |
| 7549472 | Method for increasing the production of hydrocarbon liquids and gases | Zhengxin Tong | 2009-06-23 |