MITSUBISHI HITACHI POWER SYSTEMS AMERICAS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 560
 
  
 
B01D SEPARATION 4130
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 370
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
B25B TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING143
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
F01K STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES 127
 
  
 
F02C GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS 158
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 122
 
  
 
F23J REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 116

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0021,727 METHOD AND APPARATUS FOR OPERATING A GAS TURBINE POWER PLANT AT LOW LOAD CONDITIONS WITH STACK COMPLIANT EMISSIONS LEVELSOct 04, 17Jan 25, 18[F01N, B01D]
2016/0256,991 ROOT SPRING REMOVAL TOOL AND METHOD OF REMOVING A BLADE ROOT SPRINGFeb 03, 16Sep 08, 16[B25B, F01D]
2014/0015,200 INTER STAGE SEAL HOUSING HAVING A REPLACEABLE WEAR STRIPSep 16, 13Jan 16, 14[F01D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9890672 Combustion gas cooling apparatus, denitration apparatus having the combustion gas cooling apparatus, and combustion gas cooling methodSep 06, 12Feb 13, 18[F01N, F02C, F01D, B01D]
9651251 Methods and systems for controlling gas temperaturesJun 10, 16May 16, 17[F23J, G05D, F22D]
9644511 Combustion gas cooling apparatus, denitration apparatus including the combustion gas cooling apparatus, and combustion gas cooling methodSep 06, 12May 09, 17[F01N, B01D]
9561482 Static mixer assembly suitable for use with injected gas in SCR and/or other applicationsOct 08, 13Feb 07, 17[B01F]
9399927 Method and apparatus for operating a gas turbine power plant at low load conditions with stack compliant emissions levelsNov 25, 14Jul 26, 16[F23G, F23J, F01K, F01N, F23R, F02C, F01D, B01D]
9388978 Methods and systems for controlling gas temperaturesDec 21, 12Jul 12, 16[F22B, F22D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0204,241 METHOD AND APPARATUS FOR OPERATING A GAS TURBINE POWER PLANT AT LOW LOAD CONDITIONS WITH STACK COMPLIANT EMISSIONS LEVELSAbandonedSep 25, 14Jul 23, 15[F02C, F23R]
2015/0128,417 TURBINE BLADE REMOVAL TOOL AND METHOD THEREOFAbandonedNov 13, 14May 14, 15[B23P, F01D]

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