ENCANA CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 690
 
  
 
B01D SEPARATION 2132
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
F25J LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT 128

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8851179 Process and process line for the preparation of hydraulic fracturing fluidDec 21, 12Oct 07, 14[B01F, E21B]
8518159 Treatment of water for use in hydraulic fracture stimulationOct 06, 11Aug 27, 13[B01D]
8360152 Process and process line for the preparation of hydraulic fracturing fluidNov 27, 09Jan 29, 13[E21B]
8235112 Gas flow systemApr 29, 11Aug 07, 12[E21B]
8215387 In situ combustion in gas over bitumen formationsMar 22, 12Jul 10, 12[E21B]
8167040 In situ combustion in gas over bitumen formationsMar 07, 11May 01, 12[E21B]
7900701 In situ combustion in gas over bitumen formationsJan 13, 06Mar 08, 11[E21B]
6551466 Multiple effect distillation process with reduced foulingDec 22, 99Apr 22, 03[C02F, B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0319,668 PUMPABLE SEAT ASSEMBLY AND USE FOR WELL COMPLETIONAbandonedMay 16, 13Dec 05, 13[E21B]
2013/0319,682 WELL COMPLETION USING A PUMPABLE SEAT ASSEMBLYAbandonedMay 23, 13Dec 05, 13[E21B]
2011/0272,365 REMOVAL OF HYDROGEN SULFIDE FROM WATERAbandonedMay 07, 10Nov 10, 11[C02F]
7954547 Gas flow systemExpiredSep 03, 08Jun 07, 11[E21B]
2009/0242,201 SYSTEM AND METHOD FOR POLYMER DISTRIBUTION TO WELL SITESAbandonedOct 21, 08Oct 01, 09[E21B]
2002/0134,550 Slurry recovery processAbandonedMay 07, 01Sep 26, 02[E21B]
6336503 Downhole separation of produced water in hydrocarbon wells, and simultaneous downhole injection of separated water and surface waterExpiredMar 03, 00Jan 08, 02[E21B]
6336504 Downhole separation and injection of produced water in naturally flowing or gas-lifted hydrocarbon wellsExpiredMar 03, 00Jan 08, 02[E21B]

Top Inventors for This Owner

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