The Japan Iron and Steel Federation

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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 316
 
  
 
C10G CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION 161
 
  
 
C10L FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS 141

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7645362 Method for pretreating and improving coking coal quality for blast furnace cokeSep 10, 04Jan 12, 10[C10L, C10G, C10B]
6797122 Coke oven and method of operating the sameMar 03, 00Sep 28, 04[C10B]
6033528 Process for making blast furnace cokeJan 13, 97Mar 07, 00[C10B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5735917 Method of promoting carbonization in the door region of a coke oven and oven door thereforExpiredApr 02, 96Apr 07, 98[C10J]
5720116 Apparatus for drying and heating coal to be charged to coke ovenExpiredOct 05, 95Feb 24, 98[F26B]
4596642 Process and apparatus for treating effluent gas by irradiation with electron beamsExpiredJan 10, 85Jun 24, 86[B01J]
4324759 Apparatus for treating waste gas by irradiation with electron beamsExpiredMay 19, 80Apr 13, 82[F23J, B01J, B01D]

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