Geopetrol Equipment LTD.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Geopetrol Equipment LTD..The latest application filed is for "tar sands extraction process".
- Geopetrol Equipment LTD. - Edmonton CA
| Patent | Date |
|---|---|
| Tar sands extraction process Grant 5,985,138 - Humphreys November 16, 1 | 1999-11-16 |
| Tar sands extraction process Grant 5,770,049 - Humphreys June 23, 1 | 1998-06-23 |
| Tar sands extraction process Grant 5,626,743 - Humphreys May 6, 1 | 1997-05-06 |
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