KRUPP KOPPERS GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137
 
  
 
C10B DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS 118
 
  
 
C10G CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION 161

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5401365 High purity benzene production using extractive distillationOct 27, 93Mar 28, 95[C07C]
5259932 Heating system for regenerative coke ovensNov 22, 91Nov 09, 93[C10B]
5252200 Method of separating an aromatic from a hydrocarbon mixtureSep 26, 91Oct 12, 93[C10G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5824121 Apparatus for the pressure gasification of finely divided fuelsExpiredSep 20, 95Oct 20, 98[C10J]
5767332 Process and apparatus for producing aromatic hydrocarbon compositionExpiredAug 29, 95Jun 16, 98[C07C, C10G]
5672326 Method of treating vapors containing ammonia and hydrogen sulfideExpiredDec 05, 95Sep 30, 97[B01D]
5607594 Process for purifying an aqueous methyldiethanolamine solutionExpiredSep 05, 95Mar 04, 97[C02F]
5571295 Process for cooling of a partial oxidation crude gasExpiredNov 22, 94Nov 05, 96[C10J]
5470361 Process for working up municipal plastic waste materials by gasificationExpiredOct 27, 94Nov 28, 95[C10K, C10J]
5445658 Gasification apparatus for a finely divided combustible materialExpiredFeb 24, 94Aug 29, 95[C01J]
5441547 Method for gasification of a finely divided combustible materialExpiredFeb 24, 94Aug 15, 95[C10J]
5238540 Method of obtaining a pure aromatic hydrocarbon from a sump product of an extractive distillation of a hydrocarbon mixtureExpiredSep 26, 91Aug 24, 93[C07C, B01D]
5234553 Process for obtaining a pure hydrocarbon from a sump product of an extractive distillationExpiredJul 22, 92Aug 10, 93[C07C, B01D]
5215629 Method of separating aromatics from a hydrocarbon mixture having an aromatic contentExpiredDec 05, 91Jun 01, 93[B01D]
5180474 Method of separation of aromates by extractive distillationExpiredJan 27, 92Jan 19, 93[C07C, B01D]
5143520 Method of and radiant cooler for radiant cooling of product mass stream discharged from a gasification reactorExpiredDec 18, 89Sep 01, 92[C10J]
5100640 Method of operating a Claus-plantExpiredDec 28, 90Mar 31, 92[C01B]
5092765 Method and arrangement for hot repair of heating trains of coke oven batteryExpiredOct 04, 90Mar 03, 92[F24H, F27D]
5080761 Method of optimizing the operation of a distillation column provided with a side heating deviceExpiredSep 01, 89Jan 14, 92[B01D]
5066476 Method of producing hydrogen-rich gasExpiredJul 06, 90Nov 19, 91[C01B]
5058534 Pipe wall of hot reaction chambersExpiredAug 17, 90Oct 22, 91[F22B]
5057190 Stripping column installation for separating materials with high boiling point differenceExpiredFeb 02, 90Oct 15, 91[B01D]
5055630 Process for making p-xylene with a purity of more than 99.8% by weightExpiredOct 20, 89Oct 08, 91[C07C]

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