Danfoss Scroll Technologies, LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 557
 
  
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 443
 
  
 
F03C POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS 321
 
  
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 227
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 2131
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9541087 Sealing grommet for connection between terminal housing and interior of sealed compressorJul 08, 11Jan 10, 17[F04B, H01R, F04C, F01C]
8840384 Scroll compressor capacity modulation with solenoid mounted outside a compressor shellSep 08, 09Sep 23, 14[F04C, F03C]
8801400 Secure connection terminal for hermetic compressorJul 08, 11Aug 12, 14[F04B, H01H, H05K]
8449272 Sealed compressor with easy to assemble oil pumpMay 14, 10May 28, 13[F04B]
8328534 Deformed shell for holding motor stator in a compressor shellDec 09, 09Dec 11, 12[F04B]
8328566 Terminal connection for sealed compressorJul 08, 11Dec 11, 12[H01R]
8303279 Injection tubes for injection of fluid into a scroll compressorSep 08, 09Nov 06, 12[F04C, F03C, F01C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8579614 Scroll compressor with three discharge valves, and discharge pressure tap to back pressure chamberExpiredFeb 04, 11Nov 12, 13[F04C, F03C]
8556598 Sealed compressor with multiple compressor unitExpiredNov 02, 10Oct 15, 13[F04B]
8337183 Oil return valve for a scroll compressorExpiredSep 21, 09Dec 25, 12[F04C, F03C]
8328531 Scroll compressor with three-step capacity controlExpiredJan 22, 09Dec 11, 12[F04B]
8308448 Scroll compressor capacity modulation with hybrid solenoid and fluid controlExpiredDec 08, 09Nov 13, 12[F04B]
2012/0258,003 SCROLL COMPRESSOR WITH SPRING TO ASSIST IN HOLDING SCROLL WRAPS IN CONTACTAbandonedApr 06, 11Oct 11, 12[F01C]
2012/0244,026 COUNTERWEIGHT INCORPORATED INTO SLIDER BLOCK FOR SCROLL COMPRESSORAbandonedJun 09, 11Sep 27, 12[F01C]
2012/0177,514 DISCHARGE PRESSURE ESTIMATION FOR COMPRESSORAbandonedJan 12, 11Jul 12, 12[F04B]
8215926 Scroll compressor counterweight with cooling flow directing surfaceExpiredDec 09, 09Jul 10, 12[H02K, F04B]
2011/0135,523 SEALED COMPRESSOR WITH MOTOR STANDARD SPACER PROVIDING BEARING MOUNTAbandonedDec 09, 09Jun 09, 11[F04C]
2011/0091,341 METHOD AND APPARATUS FOR ESTABLISHING CLEARANCES IN SCROLL COMPRESSORAbandonedOct 21, 09Apr 21, 11[B23P, F04C]
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]

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