PanCanadian Petroleum Limited

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Patent Activity in the Last 10 Years

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Intl Class Technology Matters Rank in Class
 
  
 
C10L FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS 141
 
  
 
E21B EARTH OR ROCK DRILLING 195

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6189613 Downhole oil/water separation system with solids separationSep 24, 99Feb 20, 01[E21B]
5503646 Process for coal - heavy oil upgradingJun 30, 94Apr 02, 96[C10L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2003/0062,717 Multi-passage conduitAbandonedJul 30, 02Apr 03, 03[F16L]
5876592 Solvent process for bitumen separation from oil sands frothExpiredMay 18, 95Mar 02, 99[C10G]
5787051 Three-dimensional seismic acquisitionExpiredJul 01, 96Jul 28, 98[G01V]
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]
5290433 Froth washerExpiredAug 22, 91Mar 01, 94[C10G]
5264118 Pipeline conditioning process for mined oil-sandExpiredDec 26, 91Nov 23, 93[C10G]
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]
5039227 Mixer circuit for oil sandExpiredNov 24, 89Aug 13, 91[B01F]
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]
4863009 Control system for an endless belt conveyor trainExpiredNov 14, 88Sep 05, 89[G01G]
4859317 Purification process for bitumen frothExpiredFeb 01, 88Aug 22, 89[C10C]
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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