SAARBERGWERKE AKTIENGESELLSCHAFT

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F23B METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL 110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5154128 Process for salvaging waste and device for preparing said wasteJan 31, 91Oct 13, 92[F23B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6338488 Sealing system enabling an assemblyExpiredApr 26, 99Jan 15, 02[F16J]
6190276 Chain scraping conveyor-drive shaft for coal miningExpiredApr 20, 97Feb 20, 01[B23P, F16H]
5687674 Steam power plant for generating electric powerExpiredFeb 03, 95Nov 18, 97[E22B]
5435123 Environmentally acceptable electric energy generation process and plantExpiredDec 17, 93Jul 25, 95[F02C]
5191845 Method of reprocessing sewage sludgeExpiredAug 22, 91Mar 09, 93[F23G]
5131335 Process for reducing nitric oxide emission during the combustion of solid fuelsExpiredAug 26, 91Jul 21, 92[F23J]
5099801 Process for operating a coal-based fluidized bed combustor and fluidized bed combustorExpiredDec 12, 90Mar 31, 92[B09B, F22B]
4997579 Procedure for the draining of sludgeExpiredFeb 13, 90Mar 05, 91[C02F, B01D]
4981089 Process for the reduction of nitrogen monoxide emissions during the combustion of solid fuelsExpiredAug 08, 89Jan 01, 91[F23G]
4974411 Supercharged coal-fired steam generatorExpiredSep 14, 89Dec 04, 90[F02C]
4936881 Cooling tower for steam-powered plantsExpiredJun 21, 89Jun 26, 90[B01F]
4934874 Mobile pumping installationExpiredDec 21, 88Jun 19, 90[E02F]
4932335 Coal combustion with a fluidized incineration bedExpiredOct 31, 88Jun 12, 90[F23B]
4885011 Cooling tower for the cooling water that drains/ from the condensor of a steam generator or the condensors/ of a plurality of steam generatorsExpiredApr 08, 88Dec 05, 89[B01F]
4784810 Smoke gas exhaust by way of a cooling towerExpiredNov 13, 86Nov 15, 88[B01F]
4749194 Sectional cutting machine used to cut curved gallery cross-sections true to profileExpiredJun 23, 86Jun 07, 88[F21C]
4708774 Coal compactor rod retainerExpiredAug 04, 86Nov 24, 87[B30B, C10B]
4706580 Process to reheat flue gases cleaned by the wet processExpiredAug 06, 86Nov 17, 87[F23J]
4618414 Process for separating mineral ultra-fine grain from washings obtained in coal processing or from coal slurriesExpiredJun 06, 85Oct 21, 86[B03D]
4549401 Method and apparatus for reducing the initial start-up and subsequent stabilization period losses, for increasing the usable power and for improving the controllability of a thermal power plantExpiredMay 13, 83Oct 29, 85[F01K]

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