Assignee
PETRO CANADA EXPLORATION INC
18 granted patents·1,172 citations·filing 1975–1983
Top patents by PatentIndex Score
18 records- 0198US4084637AMethod of producing viscous materials from subterranean formationsPETRO CANADA EXPLORATION INC·Filed 1976·Granted Apr 18, 1978·378 cites·9 claims
- 0294US4010799AMethod for reducing power loss associated with electrical heating of a subterranean formationPETRO CANADA EXPLORATION INC·Filed 1975·Granted Mar 8, 1977·298 cites·1 claims
- 0392US4514305AAzeotropic dehydration process for treating bituminous frothPETRO CANADA EXPLORATION INC·Filed 1982·Granted Apr 30, 1985·104 cites·13 claims
- 0488US4146125ABitumen-sodium hydroxide-water emulsion release agent for bituminous sands conveyor beltPETRO CANADA EXPLORATION INC·Filed 1977·Granted Mar 27, 1979·44 cites·8 claims
- 0585US4225422ABeneficiation of heavy minerals from bituminous sands residues by dry screeningPETRO CANADA EXPLORATION INC·Filed 1979·Granted Sep 30, 1980·27 cites·1 claims
- 0684US4383914ADilution centrifuging of bitumen froth from the hot water process for tar sandPETRO CANADA EXPLORATION INC·Filed 1981·Granted May 17, 1983·44 cites·1 claims
- 0779US4474616ABlending tar sands to provide feedstocks for hot water processPETRO CANADA EXPLORATION INC·Filed 1983·Granted Oct 2, 1984·29 cites·3 claims
- 0878US4456536ASkimmer apparatus for recovering bitumenPETRO CANADA EXPLORATION INC·Filed 1981·Granted Jun 26, 1984·55 cites·2 claims
- 0974US4372174AMethod and apparatus for sampling a core of tar sandPETRO CANADA EXPLORATION INC·Filed 1981·Granted Feb 8, 1983·30 cites·3 claims
- 1073US4433239AMethod and apparatus for on-line monitoring of bitumen content in tar sandPETRO CANADA EXPLORATION INC·Filed 1981·Granted Feb 21, 1984·32 cites·2 claims
- 1173US4225433AFiltration of hot water extraction process whole tailingsPETRO CANADA EXPLORATION INC·Filed 1978·Granted Sep 30, 1980·28 cites·3 claims
- 1268US4282103AMethod for controlling flocculant addition to tar sand tailingsPETRO CANADA EXPLORATION INC·Filed 1979·Granted Aug 4, 1981·28 cites·5 claims
- 1358US4462892AControl of process aid used in hot water process for extraction of bitumen from tar sandPETRO CANADA EXPLORATION INC·Filed 1983·Granted Jul 31, 1984·13 cites·2 claims
- 1454US4284360AHomogenizer/subsampler for tar sand process streamsPETRO CANADA EXPLORATION INC·Filed 1979·Granted Aug 18, 1981·16 cites·4 claims
- 1552US4084639AElectrode well for electrically heating a subterranean formationPETRO CANADA EXPLORATION INC·Filed 1976·Granted Apr 18, 1978·17 cites·6 claims
- 1649US4489828ADevice for splicing cable endsPETRO CANADA EXPLORATION INC·Filed 1982·Granted Dec 25, 1984·17 cites·4 claims
- 1738US4328710AHomogenizer/subsampler for tar sand process streamsPETRO CANADA EXPLORATION INC·Filed 1981·Granted May 11, 1982·8 cites·1 claims
- 1822US4082646ACoking of bituminous solids with hot solids recyclePETRO CANADA EXPLORATION INC·Filed 1977·Granted Apr 4, 1978·4 cites·3 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →