ABB ASEA BROWN BOVERI LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F02C GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS 851
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 659
 
  
 
F23R GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS 524
 
  
 
F23C METHODS OR APPARATUS FOR COMBUSTION USING FLUENT FUEL 219
 
  
 
F23D BURNERS 230
 
  
 
B05B SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 163
 
  
 
B63H MARINE PROPULSION OR STEERING 139
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 144
 
  
 
C22C ALLOYS 171
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 171

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5938402 Axial turbine of a turbochargerDec 05, 97Aug 17, 99[F02B, F01D]
5482457 Gas-operated premixing burnerSep 13, 93Jan 09, 96[F23C]
5465577 Gas turbine combustion chamberNov 10, 94Nov 14, 95[F02C, F02G]
5432438 Combined current and voltage transformer for a metal-enclosed gas-insulated high-voltage switching stationJun 26, 92Jul 11, 95[G08B, G01R]
5400587 Gas turbine annular combustion chamber having radially displaced groups of oppositely swirling burners.Feb 25, 94Mar 28, 95[F23R]
5397216 Flow divider for radial-axial inlet housingsOct 20, 93Mar 14, 95[F01D]
5388397 Method for operating a turbocompressorNov 05, 93Feb 14, 95[F02C]
5388412 Gas turbine combustion chamber with impingement cooling tubesNov 15, 93Feb 14, 95[F02C, F23R]
5386687 Method of operating a gas turbine groupMar 10, 94Feb 07, 95[F02C]
5373695 Gas turbine combustion chamber with scavenged Helmholtz resonatorsOct 06, 93Dec 20, 94[F02C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6398622 Polishing mechanism for vehicle bumperExpiredDec 12, 00Jun 04, 02[B24B]
5698867 Turn-off, MOS-controlled, power semiconductor componentExpiredMar 24, 95Dec 16, 97[H01L]
5625203 Controlled turn-off power semiconductor deviceExpiredMay 26, 95Apr 29, 97[H01L]
5536079 CabinetExpiredDec 05, 94Jul 16, 96[H02B]
5493247 Gate circuit for hard driven GTOExpiredApr 28, 93Feb 20, 96[H03K]
5427419 Pipe systemExpiredJan 19, 93Jun 27, 95[F16L]
5416398 Method and device for operating a synchronous machineExpiredFeb 01, 93May 16, 95[H02H]
5413478 Burner with an electric ignition deviceExpiredSep 22, 93May 09, 95[F23D]
5409781 High-temperature component, especially a turbine blade, and process for producing this componentExpiredJun 04, 93Apr 25, 95[B32B]
5403149 Stabailization device for extending the characteristic map of a compressorExpiredSep 22, 93Apr 04, 95[F04D]
5395699 Component, in particular turbine blade which can be exposed to high temperatures, and method of producing said componentExpiredJun 04, 93Mar 07, 95[B32B]
5386685 Method and apparatus for a combined cycle power plantExpiredNov 05, 93Feb 07, 95[F02C]
5387082 Guide wave suspension for an axial-flow turbomachineExpiredSep 15, 93Feb 07, 95[F04B]
5388030 Metal module housing having a plurality of lugs formed therein for supporting and grounding a printed circuit boardExpiredOct 13, 92Feb 07, 95[H01R, H05K]
5381653 Aircraft engine with pressure exchangerExpiredDec 08, 93Jan 17, 95[F02C]
5375974 Stabilizing device for extending the characteristic diagram of a compressorExpiredNov 16, 93Dec 27, 94[F04D]
5376911 Choke coilExpiredJul 30, 93Dec 27, 94[H01F]
5363642 Method of operating a gas turbine groupExpiredFeb 25, 94Nov 15, 94[F02C]
5359533 Method for determining a frequency/time profile of hits, and device for carrying out the methodExpiredFeb 11, 93Oct 25, 94[G01R]
5353589 Gas turbine plant having a water or steam cooled energy exchangerExpiredJun 10, 93Oct 11, 94[F02C]

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