DRESSER-RAND COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS7318
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 6626
 
  
 
F02C GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS 3731
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS3517
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 3043
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 2636
 
  
 
B01D SEPARATION 25109
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 2087
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING1162
 
  
 
B04B CENTRIFUGES 1017

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0350,318 HYBRID COMPRESSED AIR ENERGY STORAGE SYSTEM AND PROCESSMay 23, 17Dec 07, 17[F02C, F01D]
2017/0350,417 VARIABLE AREA DIFFUSERMay 25, 17Dec 07, 17[F04D]
2017/0314,572 IMPELLER SHROUD FOR A COMPRESSORMay 17, 17Nov 02, 17[F04D, F01D]
2017/0304,756 Bladed Drum for Rotary Separator SystemJul 11, 17Oct 26, 17[B04B, F22B, B01D]
2017/0307,019 Seal Assembly For A TurbomachineOct 07, 14Oct 26, 17[F16C, F01D, F16J]
2017/0298,955 SYSTEM AND METHOD FOR RAPID PRESSURIZATION OF A MOTOR/BEARING COOLING LOOP FOR A HERMETICALLY SEALED MOTOR/COMPRESSOR SYSTEMJun 30, 17Oct 19, 17[F04D]
2017/0299,189 SINGLE CAN VORTEX COMBUSTORApr 04, 17Oct 19, 17[F23R, F02C]
2017/0268,818 System and Method for the Production of Liquefied Natural GasJun 06, 17Sep 21, 17[F25J]
2017/0227,166 Pistonless Subsea PumpOct 12, 15Aug 10, 17[F17D]
2017/0218,770 System and Method for Cooling a Fluidized Catalytic Cracking ExpanderFeb 02, 17Aug 03, 17[C10G, F01D]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9919251 Bladed drum for rotary separator systemJul 11, 17Mar 20, 18[B04B, F22B, B01D]
9920649 Valve sequencing system and method for controlling turbomachine acoustic signatureJan 15, 15Mar 20, 18[F01D]
9909440 Interlocking hole pattern sealMar 23, 12Mar 06, 18[F01D, F16J]
9909597 Supersonic compressor with separatorOct 08, 14Mar 06, 18[F04D, B01D]
9903477 Self-centering labyrinth sealJul 23, 14Feb 27, 18[F04D, F16J]
9879690 Compressor having hollow shaftJun 02, 14Jan 30, 18[F04D]
9874230 Gas takeoff isolation systemMar 05, 15Jan 23, 18[F04D, E21B, B01D]
9869199 Method for retrofitting a turbomachineDec 28, 16Jan 16, 18[F01D]
9828878 Method and apparatus for supporting and aligning diaphragms in turbomachinesMay 30, 13Nov 28, 17[F03D, F01D]
9828918 Press-fitting corrosion resistant liners in nozzles and casingsOct 29, 13Nov 28, 17[F16L, F02K, B21K, B23K, F02C, F01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0276,307 SYSTEM AND METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GASAbandonedDec 16, 14Oct 01, 15[F25J]
2015/0192,172 COAST DOWN BUSHING FOR MAGNETIC BEARING SYSTEMSAbandonedApr 03, 12Jul 09, 15[F16C]
2014/0360,189 INTEGRATED SEPARATOR TURBINEAbandonedMay 23, 14Dec 11, 14[F01K, F03G]
2014/0321,971 INTERNALLY-COOLED CENTRIFUGAL COMPRESSOR WITH COOLING JACKET FORMED IN THE DIAPHRAGMAbandonedJul 08, 14Oct 30, 14[F04D]
2014/0230,247 ONE-PIECE MANUFACTURING PROCESSAbandonedApr 24, 14Aug 21, 14[B23P]
2013/0333,403 PROCESS FOR THROTTLING A COMPRESSED GAS FOR EVAPORATIVE COOLINGAbandonedJul 29, 11Dec 19, 13[F25B]
2013/0294,939 MULTIPLE MOTOR DRIVERS FOR A HERMETICALLY-SEALED MOTOR-COMPRESSOR SYSTEMAbandonedJul 26, 11Nov 07, 13[F04D]
8500391 Method and apparatus for starting supersonic compressorsExpiredApr 06, 12Aug 06, 13[F01D]
2013/0164,120 SUPERSONIC COMPRESSORAbandonedJul 06, 12Jun 27, 13[F04D]
2013/0164,121 SUPERSONIC COMPRESSORAbandonedJul 06, 12Jun 27, 13[F04D]
2013/0121,844 Variable Speed High Efficiency Gas Compressor SystemAbandonedMay 31, 11May 16, 13[F04B]
2013/0039,748 STATOR FOR SUPERSONIC COMPRESSORAbandonedJul 06, 12Feb 14, 13[F04D]
2013/0037,657 VORTEX GENERATORSAbandonedJul 06, 12Feb 14, 13[B62D, F15D, F03D, B64C]
2011/0110,763 Exhaust Ring and Method to Reduce Turbine Acoustic SignatureAbandonedNov 06, 09May 12, 11[B23P, F01D]
2011/0103,930 Valve Sequencing System and Method for Controlling Turbomachine Acoustic SignatureAbandonedOct 30, 09May 05, 11[F01D]
2011/0097,216 LUBRICATION SYSTEM FOR SUBSEA COMPRESSORAbandonedOct 22, 09Apr 28, 11[F04B]
2011/0052,109 HYDROSTATIC AUXILIARY BEARING FOR A TURBOMACHINEAbandonedAug 28, 09Mar 03, 11[H02K, F16C]
2010/0303,604 SYSTEM AND METHOD TO REDUCE ACOUSTIC SIGNATURE USING PROFILED STAGE DESIGNAbandonedMay 27, 09Dec 02, 10[F01D]
2010/0293,967 COMPRESSOR SYSTEM AND METHOD FOR GAS LIQUEFACTION SYSTEMAbandonedDec 05, 08Nov 25, 10[F25J, F25B]
7669423 Operating method for CAES plant using humidified air in a bottoming cycle expanderExpiredJan 26, 09Mar 02, 10[F02C]

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