C21C 5/5241
In an inductively heated furnace
Official title: {in an inductively heated furnace}
C21C5/5241 (In an inductively heated furnace) appears on 73 US grants and 56 published applications in this corpus.
Search patents in C21C- Granted patents
- 73
- Published applications
- 56
- Assignees
- 60
- Inventors
- 194
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 7 |
| 2010 | 4 | 5 |
| 2011 | 2 | 3 |
| 2012 | 1 | 1 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 3 | 7 |
| 2017 | 0 | 4 |
| 2018 | 0 | 1 |
| 2019 | 7 | 0 |
| 2020 | 1 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 3 |
| 2023 | 3 | 5 |
| 2024 | 3 | 5 |
| 2025 | 1 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for smelting steel for ultrafine silicon carbide sawing wire9 Jun 2026US 12,649,958 B2Baoshan Iron & Steel Co., Ltd.
- Method for preparing stainless steel seamless tube with ultra-high cleanliness for integrated circuit and IC industry preparation device, and stainless steel seamless tube14 Apr 2026US 12,601,026 B2Shengtak New Materials Co., Ltd
- Ore dissolution and iron conversion system17 Mar 2026US 12,577,696 B2Electrasteel, Inc.
- Impurity removal in an iron conversion system7 Oct 2025US 12,435,437 B2Electrasteel, Inc.
- Method of stirring liquid metal in an electric arc furnace20 Aug 2024US 12,065,709 B2Danieli & C. Officine Meccaniche SpA
- System and a method for producing green steel with near zero ghg emissions intensity23 Apr 2026US 2026/0110043 A1Saarloha Advanced Materials Private Limited
- Impurity removal in an iron conversion system3 Apr 2025US 2025/0109516 A1Electrasteel, Inc.
- Ore dissolution and iron conversion system7 Nov 2024US 2024/0368788 A1Electrasteel, Inc.
- 2-step iron conversion system7 Nov 2024US 2024/0368789 A1Electrasteel, Inc.
- Iron conversion system and applications8 Aug 2024US 2024/0263333 A1Electrasteel, Inc.
Most cited
By later US patents
- Destruction of toxic chemicals100US 4,574,714 AUnited States Steel Corporation · 1986
- Destruction of toxic organic chemicals93US 4,602,574 AUnited States Steel Corporation · 1986
- Hypereutectic white iron alloys comprising chromium and nitrogen and articles made therefrom37US 9,284,631 B22016
- Method for direct metal making by microwave energy25US 6,277,168 B12001
- Magnetic field stabilized transferred arc furnace18US 4,495,625 AWestinghouse Electric Corp. · 1985