C22B 4/00
Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
Official title: Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (obtaining iron or steel C21B, C21C)
C22B4/00 (Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys) appears on 403 US grants and 346 published applications in this corpus.
Search patents in C22B- Granted patents
- 403
- Published applications
- 346
- Assignees
- 299
- Inventors
- 886
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 8 | 0 |
| 1978 | 8 | 0 |
| 1979 | 9 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 8 | 0 |
| 1983 | 2 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 2 |
| 2002 | 7 | 2 |
| 2003 | 2 | 15 |
| 2004 | 8 | 17 |
| 2005 | 6 | 16 |
| 2006 | 4 | 9 |
| 2007 | 6 | 8 |
| 2008 | 9 | 13 |
| 2009 | 11 | 18 |
| 2010 | 12 | 26 |
| 2011 | 13 | 21 |
| 2012 | 14 | 9 |
| 2013 | 17 | 12 |
| 2014 | 14 | 19 |
| 2015 | 9 | 25 |
| 2016 | 8 | 7 |
| 2017 | 16 | 9 |
| 2018 | 8 | 11 |
| 2019 | 15 | 7 |
| 2020 | 9 | 3 |
| 2021 | 6 | 25 |
| 2022 | 5 | 6 |
| 2023 | 7 | 18 |
| 2024 | 12 | 15 |
| 2025 | 12 | 14 |
| 2026 | 15 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High-carbon biogenic reagents and uses thereof1 Sep 2026US 12,723,211 B2Carbon Technology Holdings, LLC
- Ultrafast flash joule heating synthesis methods and systems for performing same11 Aug 2026US 12,703,891 B2William Marsh Rice University
- High-carbon biogenic reagents and uses thereof14 Jul 2026US 12,680,044 B2Carbon Technology Holdings, LLC
- High-carbon biogenic reagents and uses thereof7 Jul 2026US 12,674,108 B2Carbon Technology Holdings, LLC
- High-carbon biogenic reagents and uses thereof7 Jul 2026US 12,674,109 B2Carbon Technology Holdings, LLC
- Inorganic substance solution production method, and inorganic substance solution production apparatus10 Sep 2026US 2026/0265866 A1National Institutes for Quantum Science and Technology
- Method for extracting nickel-cobalt-manganese from laterite nickel ore by acid leaching27 Aug 2026US 2026/0250801 A1Gem Co., Ltd.
- Method for producing reduced form of metal oxide23 Jul 2026US 2026/0209886 A1K.K. Sun Metalon
- Systems and apparatus for production of high-carbon biogenic reagents16 Jul 2026US 2026/0201264 A1Carbon Technology Holdings, LLC
- Methods of Manufacturing Lithium Metal for Batteries25 Jun 2026US 2026/0176784 A1Chemelectronics LLC
Most cited
By later US patents
- Fast quench reactor method295US 5,935,293 ALockheed Martin Idaho Technologies Company · 1999
- Fast quench reactor and method231US 5,749,937 ALockheed Idaho Technologies Company · 1998
- Treatment of matter in low temperature plasmas178US 4,361,441 APlasma Holdings N.V. · 1982
- Plasma whirl reactor apparatus and methods of use164US 7,622,693 B2Foret Plasma Labs, LLC · 2009
- Thermal synthesis apparatus and process128US 6,821,500 B2Bechtel BWXT Idaho, LLC · 2004