Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6214213 | Solvent process for bitumen seperation from oil sands froth | Robert N. Tipman, Yi LONG | 2001-04-10 |
| 4859317 | Purification process for bitumen froth | Alexander Hyndman, Larry P. Hackman | 1989-08-22 |