Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11674685 | Multi-circulation heat recovery steam generator for enhanced oil recovery/steam assisted gravity drainage | Gary R Barker, Dong Chen, Colin Malcolm MacKenzie | 2023-06-13 |
| 11022299 | Multi-circulation heat recovery steam generator for enhanced oil recovery/steam assisted gravity drainage | Gary R Barker, Dong Chen, Colin Malcolm MacKenzie | 2021-06-01 |
| 7533632 | Natural circulation industrial boiler for steam assisted gravity drainage (SAGD) process | Bryan B. Stone | 2009-05-19 |