Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9512363 | Method for extracting bitumen from an oil sand stream | Julian Kift, John Patrick Ringstrom | 2016-12-06 |
| 6687720 | Percentage and average calculator with expanded display | Dean Colver, David L. Simmons | 2004-02-03 |