Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5394740 | Captive droplet interfacial tensiometer and methods of use thereof | Samuel Schurch | 1995-03-07 |
| 5301539 | Method for improving enhanced recovery of oil using surfactant-stabilized foams | Conrad Ayasse, Karin Mannhardt, Jaromir Novosad | 1994-04-12 |
| 5060727 | Method for improving enhanced recovery of oil using surfactant-stabilized foams | Conrad Ayasse, Karin Mannhardt, Jaromir Novosad | 1991-10-29 |
| 5009773 | Monitoring surfactant content to control hot water process for tar sand | Russell G. Smith | 1991-04-23 |
| 4637417 | Use of a submersible viscometer in the primary separation step of the hot water process for recovery of bitumen from tar sand | — | 1987-01-20 |
| 4474616 | Blending tar sands to provide feedstocks for hot water process | Russell G. Smith | 1984-10-02 |
| 4462892 | Control of process aid used in hot water process for extraction of bitumen from tar sand | Russell G. Smith | 1984-07-31 |