|
| US3950029 | 12. Juni 1975 | 13. Apr. 1976 | Mobil Oil Corporation | In situ retorting of oil shale |
| US3994343 | 4. März 1974 | 30. Nov. 1976 | Occidental Petroleum Corporation | Process for in situ oil shale retorting with off gas recycling |
| US4005752 | 16. Okt. 1975 | 1. Febr. 1977 | Occidental Petroleum Corporation | Method of igniting in situ oil shale retort with fuel rich flue gas |
| US4014575 | 26. Juli 1974 | 29. März 1977 | Occidental Petroleum Corporation | System for fuel and products of oil shale retort |
| US4018280 | 10. Dez. 1975 | 19. Apr. 1977 | Mobil Oil Corporation | Process for in situ retorting of oil shale |
| US4027917 | 16. Mai 1975 | 7. Juni 1977 | Occidental Petroleum Corporation | Method for igniting the top surface of oil shale in an in situ retort |
| US4043595 | 11. Aug. 1975 | 23. Aug. 1977 | Occidental Oil Shale, Inc. | In situ recovery of shale oil |
| US4043596 | 11. Aug. 1975 | 23. Aug. 1977 | Occidental Oil Shale, Inc. | Forming shale oil recovery retort by blasting into slot-shaped columner void |
| US4047760 | 28. Nov. 1975 | 13. Sept. 1977 | Occidental Oil Shale, Inc. | In situ recovery of shale oil |
| US4063780 | 30. Jan. 1976 | 20. Dez. 1977 | AZS Corporation | Method of recovering liquid and gaseous products of oil shale |
| US4105072 | 27. Jan. 1977 | 8. Aug. 1978 | Occidental Oil Shale | Process for recovering carbonaceous values from post in situ oil shale retorting |
| US4118071 | 25. Apr. 1977 | 3. Okt. 1978 | Occidental Oil Shale, Inc. | In situ oil shale retort with a horizontal sill pillar |
| US4147388 | 5. Jan. 1978 | 3. Apr. 1979 | Occidental Oil Shale, Inc. | Method for in situ recovery of liquid and gaseous products from oil shale deposits |
| US4176882 | 16. Febr. 1978 | 4. Dez. 1979 | Occidental Oil Shale, Inc. | In situ oil shale retorts with gas barriers for maximizing product recovery |
| US4231617 | 14. Dez. 1978 | 4. Nov. 1980 | Gulf Oil Corporation | Consolidation of in-situ retort |
| US4239284 | 5. März 1979 | 16. Dez. 1980 | Occidental Oil Shale, Inc. | Situ retort with high grade fragmented oil shale zone adjacent the lower boundary |
| US4263970 | 31. Juli 1978 | 28. Apr. 1981 | Occidental Oil Shale, Inc. | Method for assuring uniform combustion in an in situ oil shale retort |
| US4266826 | 24. Mai 1976 | 12. Mai 1981 | Occidental Oil Shale, Inc. | In-situ recovery of constituents from fragmented ore |
| US4303273 | 2. Nov. 1979 | 1. Dez. 1981 | Occidental Oil Shale, Inc. | In situ oil shale retort with a generally T-shaped vertical cross section |
| US4344839 | 7. Juli 1980 | 17. Aug. 1982 | | Process for separating oil from a naturally occurring mixture |
| US4357051 | 2. Juni 1980 | 2. Nov. 1982 | Occidental Oil Shale, Inc. | Withdrawal of gases and liquids from an in situ oil shale retort |
| US4440445 | 30. Nov. 1981 | 3. Apr. 1984 | Occidental Oil Shale, Inc. | Fluid outlet at the bottom of an in situ oil shale retort |
| US7862705 | 8. Febr. 2008 | 4. Jan. 2011 | Red Leaf Resources, Inc. | Methods of recovering hydrocarbons from hydrocarbonaceous material using a constructed infrastructure and associated systems |
| US7862706 | 8. Febr. 2008 | 4. Jan. 2011 | Red Leaf Resources, Inc. | Methods of recovering hydrocarbons from water-containing hydrocarbonaceous material using a constructed infrastructure and associated systems |
| US7906014 | 8. Febr. 2008 | 15. März 2011 | Red Leaf Resources, Inc. | Methods of recovering hydrocarbons from hydrocarbonaceous material with reduced non-carbonaceous leachate and CO2 and associated systems |
| US7967974 | 8. Febr. 2008 | 28. Juni 2011 | Red Leaf Resources, Inc. | Methods of recovering hydrocarbons from hydrocarbonaceous material using a constructed infrastructure having permeable walls and associated systems |
| US8003844 | 6. Febr. 2009 | 23. Aug. 2011 | Red Leaf Resources, Inc. | Methods of transporting heavy hydrocarbons |
| US8109047 | 4. Jan. 2011 | 7. Febr. 2012 | Red Leaf Resources, Inc. | System for recovering hydrocarbons from water-containing hydrocarbonaceous material using a constructed infrastructure |
