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| 9170052 | Lower vessel of RH degasser | Oct 07, 11 | Oct 27, 15 | JFE STEEL CORPORATION |
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| 9005518 | High yield ladle bottoms | Jan 30, 12 | Apr 14, 15 | NORTH AMERICAN REFRACTORIES COMPANY |
| 8987641 | High performance heater | Jun 14, 12 | Mar 24, 15 | Not available |
| 8894923 | Insulation brick | Sep 04, 12 | Nov 25, 14 | Arcelormittal Investigacion Y Desarrollo SL |
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| 8708295 | Workpiece-carrier | Aug 13, 10 | Apr 29, 14 | GTD Graphit Technologie GmbH |
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| 6948930 | Furnace head or furnace throat seal | Jun 18, 04 | Sep 27, 05 | Z & J TECHNOLOGIES GMBH |
| 6840047 | Lining for inner walls of combustion chambers | Oct 15, 02 | Jan 11, 05 | SIEMENS AKTIENGESELLSCHAFT |
| 6752624 | Soaking apparatus | Nov 27, 02 | Jun 22, 04 | Kabushiki Kaisha Showa Seisakusho |
| 6711899 | Heat shield block and use of a heat shield block in a combustion chamber | Aug 27, 02 | Mar 30, 04 | SIEMENS AKTIENGESELLSCHAFT |
| 6389776 | Gas permeable refractory brick for use in regenerative heat exchanger and hot grid formed therefrom | Mar 14, 00 | May 21, 02 | L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE |
| 6017214 | Interlocking floor brick for non-recovery coke oven | Oct 05, 98 | Jan 25, 00 | Pennsylvania Coke Technology, Inc. |