| 2025/0101,538 | Gas Injection Control System For Blast Furnace, And Control Method | Dec 13, 22 | Mar 27, 25 | Not available |
| 2025/0101,539 | BLAST FURNACE BLOWER DEVICE | Sep 20, 24 | Mar 27, 25 | Not available |
| 2025/0027,176 | Injection Regulation and Control Device and Method for Blast Furnace Low-Carbon Smelting | Dec 04, 22 | Jan 23, 25 | Not available |
| 2023/0366,050 | Device to inject a reducing gas into a shaft furnace | Sep 15, 20 | Nov 16, 23 | Not available |
| 2023/0366,049 | Device to inject a reducing gas into a shaft furnace | Sep 15, 20 | Nov 16, 23 | Not available |
| 2023/0366,047 | Blast furnace for ironmaking production | Sep 15, 20 | Nov 16, 23 | Not available |
| 2022/0403,477 | BLAST FURNACE OPERATION METHOD | Nov 27, 20 | Dec 22, 22 | 501 Nippon Steel Corporation; JFE Steel Corporation; Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.); NIPPON STEEL ENGINEERING CO., LTD; |
| 2022/0380,860 | METHOD OF OPERATING BLAST FURNACE AND BLAST FURNACE ANCILLARY FACILITY | Nov 11, 20 | Dec 01, 22 | JFE Steel Corporation |
| 2022/0298,591 | TUYERE STOCK, METHOD OF FABRICATING THE SAME, AND AIR BLAST SYSTEM FOR MELTING FURNACE | Jun 09, 22 | Sep 22, 22 | EXCELLO CO., LTD. |
| 2022/0177,985 | METHOD FOR OPERATION OF BLAST FURNACE | Mar 26, 20 | Jun 09, 22 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) |
| 2021/0017,616 | TUYERE FOR A BASIC OXYGEN FURNACE | Jul 17, 19 | Jan 21, 21 | Air Products and Chemicals, Inc. |
| 2020/0385,826 | EXTRACTION DEVICE FOR A TUYERE PART | Aug 02, 18 | Dec 10, 20 | Not available |
| 2016/0040,261 | BLAST FURNACE OPERATION METHOD AND LANCE | Mar 27, 14 | Feb 11, 16 | JFE STEEL CORPORATION |
| 2015/0353,358 | Fine Particle Coal, and Systems, Apparatuses, and Methods for Collecting and Using the Same | May 28, 15 | Dec 10, 15 | SOMERSET COAL INTERNATIONAL |
| 2015/0284,816 | SLAG REMOVAL DEVICE | Sep 10, 13 | Oct 08, 15 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
| 2015/0275,322 | BLOW-PIPE STRUCTURE | Sep 10, 13 | Oct 01, 15 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
| 2015/0247,212 | BLOW PIPE STRUCTURE | Sep 10, 13 | Sep 03, 15 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
| 2015/0225,804 | PULVERIZED-COAL INJECTION DEVICE, BLAST FURNACE FACILITY PROVIDED WITH THE SAME, AND PULVERIZED-COAL SUPPLYING METHOD | Sep 10, 13 | Aug 13, 15 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
| 2015/0218,666 | BLAST FURNACE INSTALLATION | Sep 05, 13 | Aug 06, 15 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
| 2015/0184,263 | BLAST FURNACE OPERATING METHOD AND TUBE BUNDLE-TYPE LANCE | Jul 11, 13 | Jul 02, 15 | JFE STEEL CORPORATION |