Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7091160 | Methods and compositions for reducing subterranean formation permeabilities | Bach Dao, Ron Bouwmeester, Ewout Biezen, B. Raghava Reddy | 2006-08-15 |
| 6875729 | Sealing composition | Niels van der Werff | 2005-04-05 |