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TitleDateType
1 Completion for tar sand substrateText
2 Control of process aid used in hot water process for extraction of bitumen from tar sand1984-07-31Text
3 Combined surface and in situ tar sand bitumen production1985-02-19Text
4 Coking contaminated oil shale or tar sand oil on retorted solid fines1985-03-26Text
5 Ambient froth flotation process for the recovery of bitumen from tar sand1984-01-10Text
6 Apparatus for the treatment of tar sand froth1976-07-06Text
7 Apparatus for extracting bitumen from tar sand1982-01-19Text
8 Double solvent extraction of organic constituents from tar sands1977-09-06Text
9 Method of recovering viscous petroleum from tar sand1976-11-30Text
10 Method for treating a tar sand reservoir to enhance petroleum production by cyclic steam stimulation1986-08-26Text
11 Method of recovering viscous petroleum from thick tar sand1977-02-22Text
12 Method of recovery of bitumen from tar sand formations1977-01-18Text
13 Methods of tar sand bitumen recovery1992-09-01Text
14 Method for recovering bitumen from tar sand1982-05-25Text
15 Method of extracting liquid and gaseous fuel from oil shale and tar sand1981-05-12Text
16 Method of reducing moisture and solid content of bitumen extracted from tar sand minerals2000-02-01Text
17 Flotation method and apparatus for recovering crude oil from tar-sand1982-04-13Text
18 Use of a submersible viscometer in the primary separation step of the hot water process for recovery of bitumen from tar sand1987-01-20Text
19 Multiple drain method for recovering oil from tar sand2001-07-24Text
20 Coking poor coking coals and hydrocracked tar sand bitumen binder1980-11-18Text
21 Method for filtering solvent and tar sand mixtures1985-09-03Text
22 Method and apparatus for recovering viscous petroleum from thick tar sand1978-10-17Text
23 Method and appratus for extracting tar sand1983-11-22Text
24 Method and apparatus for the solvent extraction of oil from bitumen containing tar sand1996-07-09Text
25 Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication1991-10-29Text
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