COPELAND CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 227
 
  
 
C22C ALLOYS 171
 
  
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 146
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS149
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 1132

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7186099 Inclined scroll machine having a special oil sumpJan 28, 05Mar 06, 07[F01C]
7175448 Compressor having a terminal cluster block with locking end fittingsJun 29, 05Feb 13, 07[H01R]
5759298 Gray cast iron system for scroll machinesSep 09, 96Jun 02, 98[C22C]
5447420 Scroll compressor with liquid injectionApr 13, 94Sep 05, 95[F04C]
5156539 Scroll machine with floating sealFeb 24, 92Oct 20, 92[F01C, F16J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5931649 Scroll-type machine having a bearing assembly for the drive shaftExpiredJun 04, 98Aug 03, 99[F04C]
5772416 Scroll-type machine having lubricant passagesExpiredFeb 18, 97Jun 30, 98[F01C]
5772710 Air treating systemExpiredDec 19, 95Jun 30, 98[B01D]
5674062 Hermetic compressor with heat shieldExpiredAug 30, 96Oct 07, 97[F04C]
5311748 Control system for heat pump having decoupled sensor arrangementExpiredAug 12, 92May 17, 94[F25B]
5303561 Control system for heat pump having humidity responsive variable speed fanExpiredOct 14, 92Apr 19, 94[F25D]
5303562 Control system for heat pump/air-conditioning system for improved cyclic performanceExpiredJan 25, 93Apr 19, 94[F25B]
5151018 Sound attenuation chamberExpiredJul 31, 90Sep 29, 92[G10K, F04B]
4955795 Scroll apparatus controlExpiredDec 21, 88Sep 11, 90[F04B]
4926081 Thermally protected hermetic motor compressorExpiredFeb 11, 88May 15, 90[H02K]
4895496 Refrigeration compressorExpiredJun 08, 88Jan 23, 90[F04B]
4877382 Scroll-type machine with axially compliant mountingExpiredMay 02, 88Oct 31, 89[F01C]
4827174 Rotor balancingWithdrawnNov 20, 87May 02, 89[H02K]
4781549 Modified wrap scroll-type machineExpiredMay 19, 87Nov 01, 88[F01C]
4767293 Scroll-type machine with axially compliant mountingExpiredAug 22, 86Aug 30, 88[F01C]
4729402 Compressor valve noise attenuationExpiredAug 01, 86Mar 08, 88[F16K]
D293912 Oil pumpExpiredJan 17, 86Jan 26, 88[]
D293913 Oil pumpExpiredJan 17, 86Jan 26, 88[]
4685489 Valve assembly and compressor modulation apparatusExpiredMar 22, 85Aug 11, 87[F16K, F04B]
4639201 Scroll-type machine with variable wrap thicknessExpiredSep 12, 85Jan 27, 87[F04C, F01C]

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