Description
Class C21B : MANUFACTURE OF IRON OR STEEL
Subclass 7/00: Blast furnaces (lifts associated with blast furnaces B66B 9/06)
C21B 7/00
Sub-Class
Stats
- 66 US PATENTS IN FORCE
- 18 US APPLICATIONS PENDING
- 39 Total Patent Owners
- 354 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12258671 | Reactors and methods for production of sustainable chemicals using carbon emissions of metallurgical furnaces | Jun 09, 23 | Mar 25, 25 | Dioxycle |
| 12258640 | Systems and methods for improved carbon capture associated with molten metal production | Jan 24, 24 | Mar 25, 25 | 8 RIVERS CAPITAL, LLC |
| 12091758 | Integrated hydrogen production method and system | May 11, 22 | Sep 17, 24 | Utility Global, Inc. |
| 12043874 | System and method for reducing ore using hydrogen as a reducing agent | Dec 01, 21 | Jul 23, 24 | Ohmium International, Inc. |
| 11603332 | Methods for coal combustion product (CCP) recovery and related products | Sep 04, 20 | Mar 14, 23 | ECO MATERIAL TECHNOLOGIES IP INC. |
| 11542565 | Charging system, in particular for a shaft smelt reduction furnace | Dec 06, 18 | Jan 03, 23 | Paul Wurth SA |
| 10781498 | Combined system for producing steel and method for operating the combined system | Dec 11, 14 | Sep 22, 20 | THYSSENKRUPP AG |
| 10755200 | Automated control of circumferential variability of blast furnace | Sep 22, 17 | Aug 25, 20 | International Business Machine Corporation |
| 10713595 | Method for automated control of circumferential variability of blast furnace | Nov 14, 17 | Jul 14, 20 | International Business Machine Corporation |
| 10697031 | Combined system for producing steel and method for operating the combined system | Dec 11, 14 | Jun 30, 20 | THYSSENKRUPP AG |
| 10697030 | Plant combination for producing steel and method for operating the plant combination | Dec 11, 14 | Jun 30, 20 | THYSSENKRUPP AG |
| 10697032 | Method for generating synthesis gas in conjunction with a smelting works | Dec 11, 14 | Jun 30, 20 | THYSSENKRUPP AG |
| 10626750 | Top-pressure recovery turbine deposition control | Dec 08, 17 | Apr 21, 20 | ECOLAB USA INC. |
| 10604816 | Combined system for producing steel and method for operating the combined system | Dec 11, 14 | Mar 31, 20 | THYSSENKRUPP AG |
| 10526670 | Blast furnace and method for operating a blast furnace | Dec 01, 15 | Jan 07, 20 | CCP TECHNOLOGY GMBH |
| 10518216 | Process and device for treating furnace gas | Nov 02, 16 | Dec 31, 19 | DANIELI CORUS B.V. |
| 10400292 | Method for operating blast furnace | Feb 22, 16 | Sep 03, 19 | JFE Steel Corporation |
| 10287643 | Blast furnace and method for operating a blast furnace | Nov 27, 14 | May 14, 19 | CCP TECHNOLOGY GMBH |
| 10155195 | Monitoring system for annular scrubbers | Sep 24, 15 | Dec 18, 18 | PRIMETALS TECHNOLOGIES AUSTRIA GMBH |
| 10155997 | Device for producing partially reduced iron | Dec 11, 14 | Dec 18, 18 | PRIMETALS TECHNOLOGIES JAPAN, LTD. |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0019,782 | Steelmaking method and associated network of plants | Dec 16, 21 | Jan 16, 25 | Not available |
| 2024/0426,728 | INFORMATION PROCESSING METHOD, INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING PROGRAM, AND METHOD OF OPERATING A BLAST FURNACE | Oct 26, 22 | Dec 26, 24 | JFE Steel Corporation |
| 2024/0425,941 | GEOTHERMALLY POWERED IRON PRODUCTION SYSTEMS AND METHODS | Jun 23, 23 | Dec 26, 24 | Not available |
| 2024/0336,986 | SYSTEM AND METHOD FOR REDUCING ORE USING HYDROGEN AS A REDUCING AGENT | Jun 18, 24 | Oct 10, 24 | Not available |
| 2024/0279,756 | PROCESS UTILIZING SYNTHESIS GAS FOR IMPROVING THE ENVIRONMENTAL IMPACT OF THE REDUCTION OF IRON ORE IN BLAST FURNACES | May 02, 22 | Aug 22, 24 | Not available |
| 2024/0271,232 | METHOD FOR PRODUCING STEEL IN AN INTEGRATED METALLURGICAL PLANT | May 11, 22 | Aug 15, 24 | ThyssenKrupp Steel Europe AG |
| 2024/0263,259 | Operating method of a network of plants | May 26, 21 | Aug 08, 24 | Not available |
| 2024/0218,472 | SUPPLIED HEAT QUANTITY ESTIMATION METHOD, SUPPLIED HEAT QUANTITY ESTIMATION DEVICE, SUPPLIED HEAT QUANTITY ESTIMATION PROGRAM, AND BLAST FURNACE OPERATION METHOD | Mar 25, 22 | Jul 04, 24 | JFE Steel Corporation |
| 2024/0084,410 | BLEED-OFF GAS RECOVERY IN A DIRECT REDUCTION PROCESS | Feb 01, 22 | Mar 14, 24 | Not available |
| 2024/0018,615 | METHOD FOR PRODUCING PIG IRON IN A SHAFT FURNACE | Sep 21, 21 | Jan 18, 24 | ThyssenKrupp Steel Europe AG |
| 2023/0008,316 | METHOD FOR CONVERTING A BLAST FURNACE PLANT | Nov 26, 20 | Jan 12, 23 | Not available |
| 2022/0380,859 | METHOD FOR OPERATING BLAST FURNACE | Oct 19, 20 | Dec 01, 22 | JFE Steel Corporation |
| 2021/0123,110 | PLANT COMPLEX FOR PIG IRON PRODUCTION AND A METHOD FOR OPERATING THE PLANT COMPLEX | Sep 29, 17 | Apr 29, 21 | ThyssenKrupp Industrial Solutions AG; THYSSENKRUPP AG; |
| 2017/0233,839 | BLAST FURNACE PLANT | Aug 18, 15 | Aug 17, 17 | PAUL WURTH S.A. |
| 2017/0226,600 | PRESSURE RELIEF VALVE FOR PRESSURIZED FURNACE | Sep 24, 15 | Aug 10, 17 | PRIMETALS TECHNOLOGIES AUSTRIA GMBH |
| 2016/0348,195 | PLANT COMBINATION FOR PRODUCING STEEL AND METHOD FOR OPERATING THE PLANT COMBINATION | Dec 11, 14 | Dec 01, 16 | THYSSENKRUPP AG |
| 2016/0348,196 | METHOD FOR GENERATING SYNTHESIS GAS IN CONJUNCTION WITH A SMELTING WORKS | Dec 11, 14 | Dec 01, 16 | THYSSENKRUPP AG |
| 2016/0326,605 | COMBINED SYSTEM FOR PRODUCING STEEL AND METHOD FOR OPERATING THE COMBINED SYSTEM | Dec 11, 14 | Nov 10, 16 | THYSSENKRUPP AG |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 33 Months (last 2 years Issuances)
- 33 Months (last 5 years Issuances)