Class C21C : PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL
Subclass 5/04: Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11549156 | Smelting assembly for the production of steel | Mar 05, 19 | Jan 10, 23 | SMS group GMBH |
| 9771626 | Starting a smelting process | Jul 18, 13 | Sep 26, 17 | TECHNOLOGICAL RESOURCES PTY. LIMITED |
| 9458518 | Starting a smelting process | Dec 06, 12 | Oct 04, 16 | TECHNOLOGICAL RESOURCES PTY. LIMITED |
| 8771399 | Desulfurization puck | Mar 10, 10 | Jul 08, 14 | MAGNESIUM TECHNOLOGIES CORPORATION |
| 8337746 | Transferring molten metal from one structure to another | Jun 21, 07 | Dec 25, 12 | MOLTEN METAL EQUIPMENT INNOVATIONS, LLC |
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