Class C21C : PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL
Subclass 5/40: Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel Manufacture of steel in the converter Removal of waste gases or dust Offtakes or separating apparatus for converter waste gases or dust
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11338362 | Melting apparatus for the production of steel | Jun 25, 18 | May 24, 22 | Danieli & C. Officine Meccaniche S.p.A. |
| 10781498 | Combined system for producing steel and method for operating the combined system | Dec 11, 14 | Sep 22, 20 | THYSSENKRUPP AG |
| 10712753 | Method and apparatus for the energy-efficient operation of secondary dust removal systems | Sep 25, 14 | Jul 14, 20 | SMS GROUP GMBH |
| 10604816 | Combined system for producing steel and method for operating the combined system | Dec 11, 14 | Mar 31, 20 | THYSSENKRUPP AG |
| 10518216 | Process and device for treating furnace gas | Nov 02, 16 | Dec 31, 19 | DANIELI CORUS B.V. |
| 9493853 | Cleaning tool for cleaning particles contained in a slurry | Sep 23, 13 | Nov 15, 16 | Not available |
| 9310133 | Rotary hearth furnace exhaust gas duct apparatus and method for operating same | Sep 02, 11 | Apr 12, 16 | KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.), Kobe Steel, Ltd., |
| 9157336 | Waste heat recovery structure for steel making electric arc furnaces, steel making electric arc furnace facility, and waste heat recovery method for steel making electric arc furnaces | Apr 19, 11 | Oct 13, 15 | JP STEEL PLANTECH CO. |
| 8926729 | Method and apparatus for direct reduction ironmaking | Jun 23, 11 | Jan 06, 15 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
| 8562902 | Direct smelting plant | Mar 01, 07 | Oct 22, 13 | TECHNOLOGICAL RESOURCES PTY. LIMITED |
| 8545597 | Method for operating a blast furnace and blast furnace installation | Oct 30, 09 | Oct 01, 13 | PAUL WURTH S.A. |
| 8496728 | Metallurgical process and plant therefor | Feb 12, 09 | Jul 30, 13 | OUTOTEC OYJ |
| 8142542 | Producing metal and carbon dioxide with hydrogen recycle | Sep 22, 11 | Mar 27, 12 | PRAXAIR TECHNOLOGY, INC. |
| 8100065 | Flue dust discharging method and system | Jun 04, 08 | Jan 24, 12 | CHINA STEEL CORPORATION |
| 8057734 | Producing metal and carbon dioxide with hydrogen recycle | Feb 23, 10 | Nov 15, 11 | PRAXAIR TECHNOLOGY, INC. |
| 7625423 | Method for obtaining pure copper | Oct 06, 05 | Dec 01, 09 | XSTRATA TECHNOLOGY PTY LTD. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0034,668 | Steelmaking method and associated network of plants | Dec 07, 22 | Jan 30, 25 | Not available |
| 2016/0186,278 | Method for Recycling-Processing of Dust Generated in Converter Furnace | Aug 07, 14 | Jun 30, 16 | ASTEC IRIE CO., LTD. |
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