| 2024/0077,255 | METHOD FOR OPERATING A BLAST FURNACE PLANT | Jan 20, 22 | Mar 07, 24 | Not available |
| 2024/0052,439 | METHOD FOR CHARGING RAW MATERIALS INTO BLAST FURNACE | Oct 25, 23 | Feb 15, 24 | JFE Steel Corporation |
| 2023/0113,814 | METAL MATERIAL SUPPLY DEVICE | Mar 03, 21 | Apr 13, 23 | AISIN TAKAOKA CO., LTD. |
| 2022/0290,922 | SEAL VALVE FOR A PCI SYSTEM OF A BLAST FURNACE | Jul 23, 20 | Sep 15, 22 | Not available |
| 2022/0236,008 | IN-FEED HOPPER AND METER FOR CARBON-BASED FEEDSTOCK PROCESSING SYSTEM | Apr 14, 22 | Jul 28, 22 | CLEAN ENERGY TECHNOLOGY ASSOCIATION, INC. |
| 2021/0041,174 | DELIVERY DEVICE FOR BLAST FURNACE | Apr 08, 19 | Feb 11, 21 | Not available |
| 2021/0041,172 | BLAST FURNACE APPARATUS AND OPERATION METHOD FOR BLAST FURNACE | Mar 25, 19 | Feb 11, 21 | JFE Steel Corporation |
| 2019/0219,335 | MATERIAL HOPPER, IN PARTICULAR FOR A BLAST FURNACE | Sep 18, 17 | Jul 18, 19 | Not available |
| 2019/0107,329 | IN-FEED HOPPER AND METER FOR CARBON-BASED FEEDSTOCK PROCESSING SYSTEM | Dec 05, 18 | Apr 11, 19 | Not available |
| 2017/0198,972 | GEARBOX ASSEMBLY FOR A CHARGING INSTALLATION OF A METALLURGICAL REACTOR | Jun 04, 15 | Jul 13, 17 | PAUL WURTH S.A. |
| 2016/0258,685 | A DISPERSION APPARATUS | Oct 17, 14 | Sep 08, 16 | HATCH PTY LTD |
| 2016/0116,216 | OVERFLOW MOLTEN METAL TRANSFER PUMP WITH GAS AND FLUX INJECTION | May 14, 14 | Apr 28, 16 | PYROTEK, INC. |
| 2015/0211,793 | ROTARY CHARGING DEVICE FOR SHAFT FURNACE | Jul 15, 13 | Jul 30, 15 | PAUL WURTH S.A. |
| 2015/0204,608 | ROTARY CHARGING DEVICE FOR SHAFT FURNACE | Jul 15, 13 | Jul 23, 15 | PAUL WURTH S.A. |
| 2015/0204,610 | INSTALLATION FOR DISTRIBUTING PULVERULENT SUBSTANCE BY PNEUMATIC TRANSPORTATION, COMPRISING A DEVICE FOR DEPRESSURIZING A PRESSURIZED RESERVOIR IN WHICH SAID SUBSTANCE IS STORED | Jul 03, 13 | Jul 23, 15 | PAUL WURTH S.A. |
| 2014/0112,738 | DOOR AND VALVE ASSEMBLY FOR A CHARGING INSTALLATION OF A SHAFT FURNACE | Jun 05, 12 | Apr 24, 14 | PAUL WURTH S.A. |
| 2013/0039,724 | COMPOSITE CONTINUOUS FEEDER | Aug 12, 11 | Feb 14, 13 | Not available |
| 2012/0297,925 | ELECTRIC FURNACE FOR PRODUCING MOLTEN METAL HAVING MATERIAL RECYCLING CAPABILITY | Nov 29, 11 | Nov 29, 12 | MIDREX TECHNOLOGIES, INC. |
| 2012/0225,394 | DELIVERY CHUTE FOR SINTER MATERIAL | Aug 19, 10 | Sep 06, 12 | PRIMETALS TECHNOLOGIES AUSTRIA GMBH |
| 2012/0181,140 | LOADING DEVICE | Oct 08, 10 | Jul 19, 12 | NIPPON STEEL ENGINEERING CO., LTD. |