Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9796930 | Bitumen production from single or multiple oil sand mines | JONATHAN SPENCE, YIN MING SAMSON NG, BARRY BARA, Jun Long, KEVIN REID +2 more | 2017-10-24 |
| 9068124 | Post-conditioning oil sand slurry blending for improved extraction performance | JONATHAN SPENCE, Jun Long, Samson Ng | 2015-06-30 |
| 8062511 | Primary froth recycle | JONATHAN SPENCE, Teddy Kwong, KAMAL HAMMAD, Samson Ng, Jason Schaan | 2011-11-22 |
| 7727385 | Enhanced bitumen flotation | JONATHAN SPENCE, Owen Neiman | 2010-06-01 |
| 6007708 | Cold dense slurrying process for extracting bitumen from oil sand | Geoff Allcock, JONATHAN SPENCE, Ken N. Sury | 1999-12-28 |