C21C 2300/00
Process aspects
C21C2300/00 (Process aspects) appears on 102 US grants and 157 published applications in this corpus.
Search patents in C21C- Granted patents
- 102
- Published applications
- 157
- Assignees
- 74
- Inventors
- 387
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 2 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 4 |
| 2007 | 0 | 4 |
| 2008 | 3 | 4 |
| 2009 | 3 | 4 |
| 2010 | 1 | 8 |
| 2011 | 8 | 11 |
| 2012 | 5 | 8 |
| 2013 | 7 | 10 |
| 2014 | 5 | 7 |
| 2015 | 5 | 10 |
| 2016 | 2 | 1 |
| 2017 | 6 | 4 |
| 2018 | 3 | 3 |
| 2019 | 2 | 3 |
| 2020 | 3 | 4 |
| 2021 | 5 | 4 |
| 2022 | 1 | 11 |
| 2023 | 2 | 8 |
| 2024 | 6 | 25 |
| 2025 | 10 | 13 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Converter steelmaking method23 Jun 2026US 12,662,712 B2Jfe Steel Corporation
- Method for manufacturing low-phosphorus molten steel9 Jun 2026US 12,649,955 B2Jfe Steel Corporation
- Decarburization refining method for molten steel under reduced pressure19 May 2026US 12,630,893 B2Jfe Steel Corporation
- Refining process control device and refining process control method7 Apr 2026US 12,595,523 B2Jfe Steel Corporation
- Method of operating an electric arc furnace and steel mill24 Mar 2026US 12,584,182 B2Paul Wurth S. A.
- Method for producing molten steel1 Oct 2026US 2026/0297699 A1Jfe Steel Corporation
- Apparatus for determining energized state of electric arc furnace, operation method for electric arc furnace, and electric arc furnace23 Jul 2026US 2026/0210632 A1Jfe Steel Corporation
- System to produce green steel through electric arc furnace with very low ghg emission intensity16 Jul 2026US 2026/0201487 A1Saarloha Advanced Materials Private Limited
- Molten iron dephosphorization method2 Jul 2026US 2026/0185173 A1Jfe Steel Corporation
- Method for manufacturing steel30 Apr 2026US 2026/0117333 A1Hyundai Steel Company
Most cited
By later US patents
- Automatic BOF vessel remaining lining profiler and method17US 4,893,933 AArmco Inc. · 1990
- Smart predictive line controller for AC and DC electric arc furnaces17US 5,991,327 AInverpower Controls Ltd. · 1999
- Measuring the thickness of hot slag in steelmaking16US 6,130,637 AUSX Corporation · 2000
- Method of producing metal melts and an electric arc furnace therefor14US 5,410,566 AVoest-Alpine Industrieanlagenbau GmbH · 1995
- Composition and process to create foaming slag cover for molten steel10US 4,528,035 AMetro Materials Corporation · 1985