THYSSENKRUPP ENGINEERING AG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C10B DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS 415
 
  
 
B01D SEPARATION 1133
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137
 
  
 
F27D DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5723026 Process for recovering pure benzene and pure toluene from aromatic hydrocarbon productsAug 18, 95Mar 03, 98[C07C, B01D]
5705037 Device for reducing the concentration of CO in the waste gas from coke oven batteries that are heated with lean gasDec 07, 95Jan 06, 98[C10B]
5658434 Coke-oven door assemblyNov 17, 95Aug 19, 97[C10B]
5443694 Method of restoring heating walls of coke oven batterySep 10, 93Aug 22, 95[F27D, C10B]
5306396 Leveling doorMay 18, 92Apr 26, 94[C10B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5107055 Method for simultaneous recovery of pure benzene and pure tolueneExpiredDec 05, 90Apr 21, 92[C07C]
5062925 Method of reducing the nitrogen dioxide content of flue gas from a coke oven with dual heating flues by a combination of external flue gas feed back and internal flue gas recirculationExpiredDec 04, 89Nov 05, 91[C10B]
5017270 Method of reducing nox-content in flue gas during heating of coking ovenExpiredAug 02, 90May 21, 91[C10B]
4770749 Coke oven doorExpiredJun 25, 87Sep 13, 88[C10B]
4750553 Heat exchanger for cooling solid substance-containing gasExpiredSep 22, 86Jun 14, 88[F28F]

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