Deutsche Babcock Werke Aktiengesellschaft

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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 158

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5134841 Combined gas/steam turbine processMar 05, 92Aug 04, 92[F02C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5106238 Device for transferring solid particlesExpiredSep 05, 90Apr 21, 92[B65G]
5054435 Furnace, especially a fluidized furnaceExpiredJul 10, 90Oct 08, 91[F22B]
4979894 Arrangement for burning fuels in a narrow combustion spaceExpiredJun 29, 89Dec 25, 90[F23L]
4971550 Burner with electric igniter for gaseous fuels and oxygenExpiredSep 29, 89Nov 20, 90[F23Q]
4953509 Forced-circulation steam generatorExpiredJun 29, 89Sep 04, 90[F22B]
4953793 Bowl-and-roller millExpiredJun 29, 89Sep 04, 90[B02C]
4917025 Fluidized-bed furnace that recirculates solidsExpiredOct 11, 89Apr 17, 90[F23G]
4913097 Steam generator that burns brown coal with cinders that vary in compositionExpiredApr 04, 89Apr 03, 90[F22B]
4877423 Method and device for cooling flue dustExpiredOct 14, 88Oct 31, 89[B01D]
4862835 Combustion system for burning heavy heating oil with low noxExpiredOct 14, 88Sep 05, 89[F22B]
4860962 Bowl-mill crusherExpiredDec 07, 88Aug 29, 89[B02C]
4848982 Arrangement for cooling a synthetic gas in a quenching coolerExpiredApr 04, 88Jul 18, 89[C10J]
4813382 Cooler for gases generated by gasificationExpiredApr 22, 88Mar 21, 89[F22D]
4790267 Arrangement for burning fuels in a fluidized bed with an augmented solids circulation in a combustion chamber of a steam generatorExpiredDec 22, 87Dec 13, 88[F23C]
4761133 Pressurized fluidized-bed combustion burnerExpiredJun 17, 87Aug 02, 88[F23D]
4727933 Device for cooling hot, dust-laden gasesExpiredSep 03, 86Mar 01, 88[F22B]
4705223 Bowl millExpiredNov 15, 85Nov 10, 87[B02C]
4676363 Arrangement for feeding bulk material tending to cakeExpiredJul 31, 85Jun 30, 87[B65G]
4674693 MillExpiredSep 16, 85Jun 23, 87[B02C]
4667610 Device for varying the height of a bed in a fluidized combustion chamberExpiredMay 07, 86May 26, 87[F23G]

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