|
| US4153111 | 23 Sep 1977 | 8 May 1979 | Texaco Trinidad, Inc. | Well head retriever tool and method |
| US4595239 | 23 Mar 1984 | 17 Jun 1986 | Oil Mining Corporation | Oil recovery mining apparatus |
| US4690221 | 3 Jul 1986 | 1 Sep 1987 | Shell California Production Inc. | Well tubing hanger method and apparatus for use in well control |
| US7644769 | 16 Oct 2007 | 12 Ene 2010 | OSUM Oil Sands Corp. | Method of collecting hydrocarbons using a barrier tunnel |
| US7677673 | 5 Mar 2007 | 16 Mar 2010 | HW Advanced Technologies, Inc. | Stimulation and recovery of heavy hydrocarbon fluids |
| US8127865 | 19 Abr 2007 | 6 Mar 2012 | OSUM Oil Sands Corp. | Method of drilling from a shaft for underground recovery of hydrocarbons |
| US8167960 | 21 Oct 2008 | 1 May 2012 | Osum Oil Sands Corp. | Method of removing carbon dioxide emissions from in-situ recovery of bitumen and heavy oil |
| US8176982 | 6 Feb 2009 | 15 May 2012 | Osum Oil Sands Corp. | Method of controlling a recovery and upgrading operation in a reservoir |
| US8209192 | 20 May 2009 | 26 Jun 2012 | Osum Oil Sands Corp. | Method of managing carbon reduction for hydrocarbon producers |