Scroll Technologies

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 2820
 
  
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 2211
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 2240
 
  
 
F03C POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS 915
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 761
 
  
 
F01M LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING 528
 
  
 
B01D SEPARATION 1133
 
  
 
B23D PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR 128
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
B23Q DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING 139

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8105054 Oil return tube aligned over motor protector in scroll compressorAug 26, 04Jan 31, 12[F04B]
8079228 Refrigerant system with multi-speed scroll compressor and economizer circuitSep 16, 09Dec 20, 11[F25B]
7938634 Self-modulated scroll compressor with optimized built-in volume ratioJul 27, 07May 10, 11[F04C, F03C]
7934915 Valve assembly for scroll compressorAug 04, 08May 03, 11[F03C, F01C]
7721562 Refrigerant system with multi-speed scroll compressor and economizer circuitDec 14, 05May 25, 10[F25B]
7686599 Scroll compressor with device to limit orbit radiusDec 13, 07Mar 30, 10[F03C]
7674098 Scroll compressor with vapor injection and unloader portNov 07, 06Mar 09, 10[F04C, F03C]
7641456 Scroll compressor with back pressure chamber cavity for assisting in start-upJun 21, 06Jan 05, 10[F04C]
7338264 Recesses for pressure equalization in a scroll compressorFeb 24, 06Mar 04, 08[F01C]
7273362 Scroll compressor with an eccentric pin having a higher contact pointJul 06, 05Sep 25, 07[F01C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8328531 Scroll compressor with three-step capacity controlExpiredJan 22, 09Dec 11, 12[F04B]
8096793 Ductile cast iron scroll compressorExpiredMar 22, 06Jan 17, 12[F04C, F01C]
7857603 Piezoelectric drive for scroll compressorExpiredJul 24, 07Dec 28, 10[F04B]
7766628 Sealed compressor with structure on lower housing shell to assist weld placementExpiredApr 13, 06Aug 03, 10[B23P, B23K, F04B, F01C]
2010/0050,673 OIL RETURN ALGORITHM FOR CAPACITY MODULATED COMPRESSORAbandonedSep 03, 08Mar 04, 10[F25B]
2010/0028,182 LINE FED PERMANENT MAGNET SYNCHRONOUS TYPE MOTOR FOR SCROLL COMPRESSOR WITH BYPASS PORTSAbandonedJul 31, 08Feb 04, 10[F01C]
2010/0028,184 TEMPERATURE PROTECTION SWITCH BIASED AGAINST SCROLL COMPRESSOR SHELLAbandonedJul 31, 08Feb 04, 10[F04B]
7547195 Scroll compressor with high side to low side oil bleed valveExpiredSep 26, 07Jun 16, 09[F04B]
2009/0060,767 AXIAL COMPLIANCEAbandonedAug 30, 07Mar 05, 09[F04C]
2009/0035,167 STEPPED SCROLL COMPRESSOR WITH STAGED CAPACITY MODULATIONAbandonedAug 03, 07Feb 05, 09[F01C]
7481632 Scroll compressor with an oil passage plug to limit oil flowExpiredSep 05, 07Jan 27, 09[F04C]
7476092 Scroll compressor with tapered slider blockExpiredSep 05, 07Jan 13, 09[F04C, F03C]
7431576 Ductile cast iron scroll compressorExpiredNov 30, 05Oct 07, 08[F01C]
7396213 Oil utilized as motor protector trip for scroll compressorExpiredJun 07, 04Jul 08, 08[F04B]
RE40399 Low charge protection ventExpiredMar 12, 03Jun 24, 08[F04B]
2008/0085,204 Scroll compressor with titanium Oldham couplingAbandonedOct 06, 06Apr 10, 08[F01C]
7329109 Oil retention in scroll compressor pump membersExpiredMay 18, 05Feb 12, 08[F04C]
7322806 Scroll compressor with externally installed thermostatExpiredJan 04, 06Jan 29, 08[F04C]
7284972 Scroll compressor with stop structure to prevent slider block movementExpiredMar 22, 06Oct 23, 07[F03C]
7273363 Scroll compressor with slider block having recessExpiredNov 07, 06Sep 25, 07[F01C]

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