BITZER KUEHLMASCHINENBAU GMBH

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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 566
 
  
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 2112
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 2048
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 1349
 
  
 
F03C POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS 1114
 
  
 
1502 PUMPS AND COMPRESSORS107
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING370
 
  
 
F16M FRAMES, CASINGS, OR BEDS, OF ENGINES OR OTHER MACHINES OR APPARATUS, NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS233
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 2105
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0003,421 CONTROL UNITSep 12, 17Jan 04, 18[F25B]
2018/0003,423 SCROLL COMPRESSORS WITH DIFFERENT VOLUME INDEXES AND SYSTEMS AND METHODS FOR SAMESep 15, 17Jan 04, 18[F25B, F04C]
2017/0260,980 METHOD OF MAKING A TWO-PIECE COUNTERWEIGHT FOR A SCROLL COMPRESSORMar 08, 16Sep 14, 17[B23K, F04C]
2017/0241,678 Storage Unit and Tempering System for a Storage UnitMar 16, 17Aug 24, 17[F25B, F25D]
2017/0218,944 Refrigerant CompressorApr 12, 17Aug 03, 17[H02K, F04B, F25B]
2017/0211,574 Screw CompressorApr 07, 17Jul 27, 17[F04C]
2017/0211,855 OIL DISTRIBUTION IN MULTIPLE-COMPRESSOR SYSTEMS UTILIZING VARIABLE SPEEDJan 22, 16Jul 27, 17[F25B]
2017/0184,107 CompressorMar 15, 17Jun 29, 17[F04C]
2017/0159,984 Method for Operating a Refrigeration UnitFeb 21, 17Jun 08, 17[F25B]
2017/0002,812 TWO-PIECE SUCTION FITTINGJun 30, 15Jan 05, 17[F04C]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9920762 Scroll compressor with tilting slider blockMar 23, 12Mar 20, 18[F04C, F01C]
9909586 Crankshaft with aligned drive and counterweight locating featuresMar 23, 12Mar 06, 18[F04C, F03C, F01C]
9890784 Cast-in offset fixed scroll intake openingJun 30, 15Feb 13, 18[B23P, F04C, B22D]
9856874 Holding plate for piloted scroll compressorJul 16, 15Jan 02, 18[F04C, F01C]
9777731 Duct-mounted suction gas filterJun 16, 15Oct 03, 17[F04C, F03C, F01C]
9689386 Method of active oil management for multiple scroll compressorsJul 25, 13Jun 27, 17[F04C]
9568002 Key coupling and scroll compressor incorporating sameMay 18, 15Feb 14, 17[F04C, F01C]
D777794 CompressorApr 13, 15Jan 31, 17[1502]
D777213 CompressorApr 22, 15Jan 24, 17[1502]
9458850 Press-fit bearing housing with non-cylindrical diameterMar 23, 12Oct 04, 16[F04C, F01C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2017/0022,989 UNFASTENED THRUST PLATEAbandonedJul 21, 15Jan 26, 17[F04C]
2016/0369,799 SEPARATOR PLATE WITH INLET CURVEAbandonedJun 18, 15Dec 22, 16[F04C]
2015/0219,100 SCROLL COMPRESSOR WITH CAPTURED THRUST WASHERAbandonedApr 14, 15Aug 06, 15[F04C]
2013/0251,551 COMPRESSOR SHELL WITH MULTIPLE DIAMETERSAbandonedMar 23, 12Sep 26, 13[B23P, F04B]
8167597 Shaft bearings, compressor with same, and methodsExpiredMar 23, 09May 01, 12[F04C, F03C, F01C]
7878775 Scroll compressor with housing shell locationExpiredJan 17, 08Feb 01, 11[F03C, F01C]
7878780 Scroll compressor suction flow path and bearing arrangement featuresExpiredJan 17, 08Feb 01, 11[F04C]
2010/0186,433 Scroll Compressors with Different Volume Indexes and Systems and Methods for SameAbandonedJan 22, 10Jul 29, 10[F25B, F04C]
2009/0185,927 Key Coupling and Scroll Compressor Incorporating SameAbandonedJan 17, 08Jul 23, 09[F04C]
7331766 CompressorExpiredJul 14, 04Feb 19, 08[F04B]
2006/0243,520 Screw compressor with an acoustic wave damping deviceAbandonedJun 13, 06Nov 02, 06[F02M]
2006/0218,959 Refrigerant compressorAbandonedMar 30, 06Oct 05, 06[F04B, F25B]
2006/0216,176 Refrigerant compressor for motor vehiclesAbandonedMay 11, 06Sep 28, 06[F04B]
2005/0013,702 Screw compressorAbandonedJul 02, 04Jan 20, 05[F01C]
5743321 Process for the production of parts with a spirally symmetrical outer contourExpiredMar 27, 96Apr 28, 98[B22D, B22C]
5433590 Cooling device for the lubrication circuit of a compressorExpiredDec 21, 93Jul 18, 95[F04B, F01C]
4397618 Rolling piston compressor with locking device for the separating slideExpiredNov 20, 80Aug 09, 83[F04B, F04C]

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