Shell Western E&P Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 1133
 
  
 
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
5445222 Whipstock and staged sidetrack millJun 07, 94Aug 29, 95[E21B]
5303774 Ring seal packerDec 11, 92Apr 19, 94[F21B]
5176838 Sand panJan 30, 92Jan 05, 93[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5146994 Packing assembly for use with reeled tubing and method of operating and removing sameExpiredDec 27, 90Sep 15, 92[F21B]
5108272 Sucker rod pumpExpiredFeb 27, 91Apr 28, 92[F04B]
5104301 Sucker rod pumpExpiredFeb 27, 91Apr 14, 92[F04B]
5040470 Steam generating system with NO.sub.x reductionExpiredNov 15, 90Aug 20, 91[F23B]
5002484 Method and system for flue gas recirculationExpiredMar 25, 88Mar 26, 91[F24H]
4913630 Method and apparatus for high-efficiency gas separation upstream of a submersible pumpExpiredNov 22, 88Apr 03, 90[F04B]
4901413 Method and apparatus for establishing multi-stage gas separation upstream of a submersible pumpExpiredNov 22, 88Feb 20, 90[B21D]
4836284 Equilibrium fracture acidizingExpiredJan 26, 88Jun 06, 89[E21B]
4832127 Method and apparatus for producing viscous crudesExpiredDec 29, 87May 23, 89[E21B]
4810340 Process for recovering organic values from aqueous solutions containing both organic values and scale-forming ionsExpiredMar 03, 87Mar 07, 89[C02F, B01D]
4793423 Process for treating drilled cuttingsExpiredJun 08, 87Dec 27, 88[E21B]
4788927 Retractable towing shackleExpiredJan 29, 88Dec 06, 88[B63B]
4714379 Pipelay in slurry trenchExpiredNov 26, 86Dec 22, 87[F16L, E02F]
4702758 Turbine cooling waxy oilExpiredMay 29, 86Oct 27, 87[B01D]
4697426 Choke cooling waxy oilExpiredMay 29, 86Oct 06, 87[F17C]
4664190 Process for recovering natural gas liquidsExpiredDec 18, 85May 12, 87[E21B]
4645376 Fireproof boomExpiredDec 09, 85Feb 24, 87[E02B]
4625803 Method and apparatus for injecting well treating liquid into the bottom of a reservoir intervalExpiredMay 20, 85Dec 02, 86[E21B]
4615388 Method of producing supercritical carbon dioxide from wellsExpiredOct 25, 84Oct 07, 86[E21B]
4602920 Process for inhibiting hydrates with inorganic electrolytes while producing moist CO.sub.2 from subterranean reservoirsExpiredMar 29, 85Jul 29, 86[B01D]

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