9499755 | Composite briquette for steelmaking or ironmaking furnace charge | Aug 29, 14 | Nov 22, 16 | Not available |
9187793 | Process for making low and specified hardenability structural steel | Dec 31, 10 | Nov 17, 15 | Not available |
9156090 | Method of manufacturing iron-based powder | Sep 15, 11 | Oct 13, 15 | POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, |
8771400 | Method for manufacturing molten iron | May 14, 10 | Jul 08, 14 | ISTC CO., LTD. |
8747518 | Method for foamed slag generation of a non-corrosive melt in a converter | Jan 05, 11 | Jun 10, 14 | SMS SIEMAG AKTIENGESELLSCHAFT |
8262767 | Method of producing steel for steel pipe excellent in sour-resistance performance | May 09, 11 | Sep 11, 12 | SUMITOMO METAL INDUSTRIES, LTD. |
8021599 | Method and installation for producing steel products with optimum surface quality | Feb 13, 09 | Sep 20, 11 | SMS SIEMAG AKTIENGESELLSCHAFT |
7998237 | Method and installation for the production of steel products having an optimum surface quality | May 25, 04 | Aug 16, 11 | SMS SIEMAG AKTIENGESELLSCHAFT |
7959709 | Method of producing steel for steel pipe excellent in sour-resistance performance | Dec 02, 09 | Jun 14, 11 | SUMITOMO METAL INDUSTRIES, LTD. |
7641713 | Method for reducing Cr in metallurgical slags containing Cr | May 18, 05 | Jan 05, 10 | HOLCIM TECHNOLOGY LTD |
6197086 | System and method for minimizing slag carryover during the production of steel | Oct 08, 99 | Mar 06, 01 | ISG TECHNOLOGIES, INC. |
6129888 | System and method for minimizing slag carryover during the taping of a BOF converter in the production of steel | Aug 20, 99 | Oct 10, 00 | ISG TECHNOLOGIES, INC. |
5968227 | System and method for minimizing slag carryover during the tapping of a BOF converter in the production of steel | Nov 13, 97 | Oct 19, 99 | ISG TECHNOLOGIES, INC. |
5916512 | Method and apparatus for after-burning the combustible components of the atmosphere in metallurgical smelting vessels | Mar 27, 98 | Jun 29, 99 | AIR PRODUCTS AND CHEMICALS, INC. |
5853453 | Method of processing iron-containing mettalurgical residual substances as well as arrangement for carrying out said method | Dec 30, 96 | Dec 29, 98 | VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH & CO. |
5817164 | Method and apparatus for making feedstock for steel making | Mar 12, 96 | Oct 06, 98 | Aktsionernoe Obschestvo Zakrytogo TIPA "Intermet-Service & Co." |
5514331 | Method and device for producing stainless steel | Oct 24, 94 | May 07, 96 | Outokumpu Steel Oy |
5411570 | Steelmaking process | Jun 13, 94 | May 02, 95 | ALLOYSTREAM HOLDINGS (PROPRIETARY) LIMITED |
5378261 | Method for producing steel | May 26, 93 | Jan 03, 95 | ZapTech Corporation |
4880212 | Device for detecting the level of the slag in a metal pool | Jul 26, 88 | Nov 14, 89 | Geotronics Metaltech AB |