Petro-Canada Inc.
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 10, 2001 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 1,218 Total Citation Count
- Nov 01, 1977 Earliest Filing
- 53 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
5284509 Method for producing superior quality paving asphalt and product prepared therefromApr 15, 92Feb 08, 94[C09D, C08L]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
6214213 Solvent process for bitumen seperation from oil sands frothExpiredSep 30, 97Apr 10, 01[C10G]
6007708 Cold dense slurrying process for extracting bitumen from oil sandExpiredOct 03, 97Dec 28, 99[C10G]
5876592 Solvent process for bitumen separation from oil sands frothExpiredMay 18, 95Mar 02, 99[C10G]
5494150 Conveyor belt system with shock-absorbing belt side travel control meansExpiredJun 21, 94Feb 27, 96[B65G]
5492628 Process for reducing sludge accumulation in the hot water extraction process for oil sandsExpiredOct 06, 94Feb 20, 96[C02F]
5460270 Oil sand extraction process with in-line middlings aeration and recycleExpiredSep 01, 93Oct 24, 95[C10G]
5376276 In situ primary froth quality measurements using microwave monitorExpiredApr 01, 93Dec 27, 94[C10G, B01D]
5124057 Synergistic antioxidant system for severely hydrocracked lubricating oilsExpiredJan 25, 91Jun 23, 92[C10M]
5118408 Reducing the water and solids contents of bitumen froth moving through the launder of a spontaneous flotation vesselExpiredSep 06, 91Jun 02, 92[B03D, C10G]
5009773 Monitoring surfactant content to control hot water process for tar sandExpiredJan 07, 87Apr 23, 91[C10E]
4999328 Hydrocracking of heavy oils in presence of petroleum coke derived from heavy oil coking operationsExpiredJun 28, 88Mar 12, 91[B01J]
4969988 Antifoam to achieve high conversion in hydroconversion of heavy oilsExpiredApr 17, 89Nov 13, 90[C10G]
4963247 Hydrocracking of heavy oil in presence of ultrafine iron sulphateExpiredSep 07, 89Oct 16, 90[C10G]
4923838 Process for preparing an iron-coal slurry catalyst for hydrocracking heavy oilsExpiredFeb 01, 89May 08, 90[B01J, C10G]
4907690 Device for removing a compacted oil sand layer from a conveyor beltExpiredAug 19, 88Mar 13, 90[B65G]
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