Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9371491 | Bitumen recovery from oil sands tailings | SIMON YUAN, JONATHAN SPENCE, BRENT HILSCHER, RON SIMAN | 2016-06-21 |
| 7727385 | Enhanced bitumen flotation | Robert Siy, JONATHAN SPENCE | 2010-06-01 |
| 5988198 | Process for pumping bitumen froth through a pipeline | Ken N. Sury, Daniel D. Joseph, Runyuan Bai, Christopher Grant | 1999-11-23 |