DOOSAN BABCOCK ENERGY AMERICA LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL120
 
  
 
F01K STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES 127
 
  
 
F22D PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER; FEED-WATER SUPPLY; CONTROLLING WATER LEVEL; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN BOILERS 19
 
  
 
F23L AIR SUPPLY; DRAUGHT-INDUCING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS 116
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G21C NUCLEAR REACTORS 142

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8955466 Heat recovery system and methodFeb 26, 09Feb 17, 15[F23L, F22D]
8333170 Buckstay systemDec 23, 08Dec 18, 12[G21C]
7861527 Reheater temperature controlMar 05, 08Jan 04, 11[F01K]
7430914 Vibration analyzing deviceSep 16, 05Oct 07, 08[G01N]
7021106 Apparatus and method for forming internally ribbed or rifled tubesApr 15, 04Apr 04, 06[B21C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7622093 Method for zonal injection of chemicals into a furnace convective pass to reduce pollutants from flue gasesExpiredOct 29, 08Nov 24, 09[B01D]
2006/0284,417 Method of impeding crack propagationAbandonedJun 05, 06Dec 21, 06[F16L]
2006/0213,457 Supercritical downshot boilerAbandonedMar 08, 06Sep 28, 06[F22D]
2005/0063,887 Method and apparatus for zonal injection of chemicals into a furnace convective pass to reduce pollutants from flue gasesAbandonedMay 21, 04Mar 24, 05[B01D]

Top Inventors for This Owner

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