ALSTOM (SWITZERLAND) LTD

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 1133
 
  
 
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
 
  
 
F23J REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 116
 
  
 
F23L AIR SUPPLY; DRAUGHT-INDUCING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS 116
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193
 
  
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 1110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6912962 Apparatus for the cleaning of flue gases containing sulfur dioxideOct 29, 03Jul 05, 05[F23J]
6698204 Steam generator plantAug 10, 01Mar 02, 04[F01K]
6697922 Apparatus for transferring data from a memory unit to a digitally switched potentiometer using a microcontrollerJun 13, 01Feb 24, 04[H03M, G06F]
6685902 Procedure and apparatus for the cleaning of flue gases containing sulfur dioxideSep 14, 01Feb 03, 04[B01D]
6516871 Heat transfer element assemblyAug 18, 99Feb 11, 03[F23L]
6490864 Burner with damper for attenuating thermo acoustic instabilitiesOct 10, 00Dec 10, 02[F02C]
5561280 Compressed gas-blast circuit breakerMay 15, 95Oct 01, 96[H01H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7074284 Heat treatment method for bodies that comprise a nickel based superalloyExpiredNov 05, 02Jul 11, 06[C22F]
7052233 Base material with cooling air holeExpiredJul 27, 04May 30, 06[F04D]
2005/0163,688 Process for removal of impurities from secondary alumina fines and alumina and/or fluorine containing materialAbandonedJun 18, 04Jul 28, 05[C01F]
2004/0079,648 Method of depositing an oxidation and fatigue resistant MCrAIY-coatingAbandonedOct 15, 03Apr 29, 04[C25D]
2004/0075,003 Device and method for the electrostatic atomization of a liquid mediumAbandonedNov 13, 03Apr 22, 04[B05B]
2004/0056,542 Rotor for an electrical rotating machineAbandonedSep 22, 03Mar 25, 04[H02K]
2003/0196,304 Method and apparatus for installing and removing components of an air preheaterAbandonedApr 18, 02Oct 23, 03[B21K]
2003/0197,333 Air preheater sector plate bypass sealAbandonedApr 18, 02Oct 23, 03[F16J]
2003/0178,173 HEAT TRANSFER SURFACE FOR AIR PREHEATERAbandonedMar 22, 02Sep 25, 03[F23L, F28D]
6568254 Method for monitoring the creep behavior of rotating components of a compressor stage or turbine stageExpiredDec 27, 00May 27, 03[G01M]
6550249 Condenser neck between a steam turbine and a condenserExpiredJul 10, 01Apr 22, 03[F01B]
2003/0033,812 Method for cooling turbine blades/vanesAbandonedAug 12, 02Feb 20, 03[F02C]
2003/0021,684 Turbine blade tip cooling constructionAbandonedApr 15, 02Jan 30, 03[F01D]
6497102 Method for supplementing a saturated steam generation system having at least one steam turbine set, and steam power plant supplemented using the methodExpiredDec 11, 00Dec 24, 02[F02C, G21D]
6463741 Method for operating a power plantExpiredNov 01, 00Oct 15, 02[F02C]
6460325 Method of converting a system generating saturated steam, having at least one steam turbine group, and power station converted in accordance with the methodExpiredDec 20, 00Oct 08, 02[F02C]
6461144 Method of controlling thermoacoustic vibrations in a combustion system, and combustion systemExpiredMay 05, 00Oct 08, 02[G10K]
2002/0132,131 Protective coating for a thermally stressed component, particularly a turbine componentAbandonedDec 10, 01Sep 19, 02[B32B]
6446710 Arrangement for cooling a flow-passage wall surrrounding a flow passage, having at least one rib elementExpiredDec 01, 00Sep 10, 02[F28F]
6440238 Process for treating the surface of a component, made from a Ni based superalloy, to be coatedExpiredAug 04, 00Aug 27, 02[B05D, C22F]

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