Alberta Energy Company, Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B41F PRINTING MACHINES OR PRESSES 143
 
  
 
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
6276457 Method for emplacing a coil tubing string in a wellApr 07, 00Aug 21, 01[E21B]
5794532 Gambling chip and method of marking sameOct 02, 97Aug 18, 98[B41F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6027056 Slurrying oil sand for hydrotransport in a pipelineExpiredJan 20, 98Feb 22, 00[B02C]
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]
5772127 Slurrying oil sand for hydrotransport in a pipelineExpiredJan 22, 97Jun 30, 98[B02C]
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]
5036915 Method of reducing the reactivity of steam and condensate mixtures in enhanced oil recoveryExpiredNov 27, 89Aug 06, 91[E21B]
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]

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