Ringstrom; John Patrick
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ringstrom; John Patrick.The latest application filed is for "method for extracting bitumen from an oil sand stream".
- Ringstrom; John Patrick - Calgary CA
| Patent | Date |
|---|---|
| Method for extracting bitumen from an oil sand stream Grant 9,512,363 - House , et al. December 6, 2 | 2016-12-06 |
| Method For Extracting Bitumen From An Oil Sand Stream App 20140021103 - HOUSE; Peter Kirkwood ; et al. | 2014-01-23 |
| Method For Extracting Bitumen From An Oil Sand Stream App 20130220890 - PLOEMEN; Ingmar Hubertus Josephina ; et al. | 2013-08-29 |
| Process and apparatus for treating tailings Grant 7,569,137 - Hyndman , et al. August 4, 2 | 2009-08-04 |
| Process and apparatus for treating tailings App 20050150844 - Hyndman, Alexander William ; et al. | 2005-07-14 |
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