Assignee
ALBERTA ENERGY CO LTD
CA·20 granted patents·815 citations·filing 1985–2000
Top patents by PatentIndex Score
20 records- 0194US4545892ATreatment of primary tailings and middlings from the hot water extraction process for recovering bitumen from tar sandALBERTA ENERGY CO LTD·Filed 1985·Granted Oct 8, 1985·102 cites·23 claims
- 0292US5264118APipeline conditioning process for mined oil-sandALBERTA ENERGY CO LTD·Filed 1991·Granted Nov 23, 1993·89 cites·9 claims
- 0391US5876592ASolvent process for bitumen separation from oil sands frothALBERTA ENERGY CO LTD·Filed 1995·Granted Mar 2, 1999·107 cites·3 claims
- 0486US5039227AMixer circuit for oil sandALBERTA ENERGY CO LTD·Filed 1989·Granted Aug 13, 1991·73 cites·7 claims
- 0584US4783268AMicrobubble flotation process for the separation of bitumen from an oil sands slurryALBERTA ENERGY CO LTD·Filed 1987·Granted Nov 8, 1988·56 cites·4 claims
- 0683US6007708ACold dense slurrying process for extracting bitumen from oil sandALBERTA ENERGY CO LTD·Filed 1997·Granted Dec 28, 1999·61 cites·24 claims
- 0780US6276457B1Method for emplacing a coil tubing string in a wellALBERTA ENERGY CO LTD·Filed 2000·Granted Aug 21, 2001·79 cites·4 claims
- 0879US4863009AControl system for an endless belt conveyor trainALBERTA ENERGY CO LTD·Filed 1988·Granted Sep 5, 1989·42 cites·3 claims
- 0967US5118408AReducing the water and solids contents of bitumen froth moving through the launder of a spontaneous flotation vesselALBERTA ENERGY CO LTD·Filed 1991·Granted Jun 2, 1992·36 cites·2 claims
- 1061US5009773AMonitoring surfactant content to control hot water process for tar sandALBERTA ENERGY CO LTD·Filed 1987·Granted Apr 23, 1991·20 cites·1 claims
- 1157US5494150AConveyor belt system with shock-absorbing belt side travel control meansALBERTA ENERGY CO LTD·Filed 1994·Granted Feb 27, 1996·30 cites·2 claims
- 1256US5290433AFroth washerALBERTA ENERGY CO LTD·Filed 1991·Granted Mar 1, 1994·22 cites·4 claims
- 1352US5460270AOil sand extraction process with in-line middlings aeration and recycleALBERTA ENERGY CO LTD·Filed 1993·Granted Oct 24, 1995·19 cites·1 claims
- 1449US5036915AMethod of reducing the reactivity of steam and condensate mixtures in enhanced oil recoveryALBERTA ENERGY CO LTD·Filed 1989·Granted Aug 6, 1991·20 cites·29 claims
- 1549US4776949ARecycle of secondary froth in the hot water process for extracting bitumen from tar sandALBERTA ENERGY CO LTD·Filed 1985·Granted Oct 11, 1988·16 cites·2 claims
- 1641US5492628AProcess for reducing sludge accumulation in the hot water extraction process for oil sandsALBERTA ENERGY CO LTD·Filed 1994·Granted Feb 20, 1996·13 cites·4 claims
- 1735US4907690ADevice for removing a compacted oil sand layer from a conveyor beltALBERTA ENERGY CO LTD·Filed 1988·Granted Mar 13, 1990·10 cites·1 claims
- 1834US4642223AMethod for removing spent catalyst from a reactor tower and assembly for facilitating sameALBERTA ENERGY CO LTD·Filed 1985·Granted Feb 10, 1987·10 cites·3 claims
- 1933US5376276AIn situ primary froth quality measurements using microwave monitorALBERTA ENERGY CO LTD·Filed 1993·Granted Dec 27, 1994·6 cites·7 claims
- 2032US4637417AUse of a submersible viscometer in the primary separation step of the hot water process for recovery of bitumen from tar sandALBERTA ENERGY CO LTD·Filed 1985·Granted Jan 20, 1987·4 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →