Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7938182 | Method for recovery of natural gas from a group of subterranean zones | Steve Sim, Ashok Singhal, Gary Bunio, Blaine F. Hawkins | 2011-05-10 |
| 7328743 | Toe-to-heel waterflooding with progressive blockage of the toe region | Fred Wassmuth, Vijay Shrivastava, Ashok Singhal | 2008-02-12 |
| 6412557 | Oilfield in situ hydrocarbon upgrading process | Conrad Ayasse, Malcolm Greaves | 2002-07-02 |
| 6167966 | Toe-to-heel oil recovery process | Conrad Ayasse | 2001-01-02 |