PanCanadian Petroleum Limited
Patent Owner
Stats
- 2 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 03, 2003 most recent publication
Details
- 2 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 720 Total Citation Count
- Sep 17, 1979 Earliest Filing
- 29 Expired/Abandoned/Withdrawn Patents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
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
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]
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]
4907690 Device for removing a compacted oil sand layer from a conveyor beltExpiredAug 19, 88Mar 13, 90[B65G]
4783268 Microbubble flotation process for the separation of bitumen from an oil sands slurryExpiredDec 28, 87Nov 08, 88[B03D, C10G]
4776949 Recycle of secondary froth in the hot water process for extracting bitumen from tar sandExpiredDec 05, 85Oct 11, 88[C10G]
4642223 Method for removing spent catalyst from a reactor tower and assembly for facilitating sameExpiredApr 02, 85Feb 10, 87[B01J]
4637417 Use of a submersible viscometer in the primary separation step of the hot water process for recovery of bitumen from tar sandExpiredMay 03, 85Jan 20, 87[F17D]
4545892 Treatment of primary tailings and middlings from the hot water extraction process for recovering bitumen from tar sandExpiredApr 15, 85Oct 08, 85[C10G]
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