C22B 4/005
Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
Official title: {using plasma jets (smelting, remelting, refining of metals using a plasma as heat source C22B9/22; generating or handling plasma in general H05H1/00; gas-filled discharge tubes for processing materials in general H01J37/32)}
C22B4/005 (Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys) appears on 188 US grants and 99 published applications in this corpus.
Search patents in C22B- Granted patents
- 188
- Published applications
- 99
- Assignees
- 126
- Inventors
- 345
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 1 |
| 2003 | 1 | 6 |
| 2004 | 3 | 11 |
| 2005 | 3 | 6 |
| 2006 | 3 | 4 |
| 2007 | 5 | 4 |
| 2008 | 2 | 1 |
| 2009 | 7 | 3 |
| 2010 | 4 | 12 |
| 2011 | 6 | 8 |
| 2012 | 7 | 1 |
| 2013 | 7 | 5 |
| 2014 | 5 | 7 |
| 2015 | 5 | 4 |
| 2016 | 1 | 1 |
| 2017 | 3 | 3 |
| 2018 | 2 | 2 |
| 2019 | 3 | 2 |
| 2020 | 3 | 1 |
| 2021 | 2 | 5 |
| 2022 | 0 | 1 |
| 2023 | 4 | 4 |
| 2024 | 1 | 3 |
| 2025 | 2 | 0 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Continuous methods for treating liquids and manufacturing certain constituents (e.g., nanoparticles) in liquids, apparatuses and nanoparticles and nanoparticle/liquid solution(s) resulting therefrom16 Sep 2025US 12,415,218 B2Ciene Nanomedicine, Inc.
- Collocating a large-scale dissociating reactor near a geothermal energy source for green refinement of critical minerals from brines11 Feb 2025US 12,221,670 B2Lyten, Inc.
- Collocating a large-scale dissociating reactor near a geothermal energy source for producing green lithium from brines18 Jun 2024US 12,012,644 B2Lyten, Inc.
- Method for refining one or more critical minerals19 Sep 2023US 11,761,057 B1Lyten, Inc.
- Process and system for plasma-induced selective extraction and recovery of species from a matrix4 Jul 2023US 11,692,239 B2Centre National de la Recherche Scientifique (CNRS)
- Low-temperature microwave-powered plasma reduction system and methodology18 Jun 2026US 2026/0168043 A1Starfire Industries LLC
- Non-thermal plasma direct reduction of ore ultrafines12 Mar 2026US 2026/0071289 A1Starfire Industries LLC
- Method for extracting a metal ion from an earth material15 Jan 2026US 2026/0014493 A1Schlumberger Technology Corporation
- Geopolymer precursor preparation15 Jan 2026US 2026/0015288 A1Schlumberger Technology Corporation
- Collocating a large-scale dissociating reactor near a geothermal energy source for green refinement of critical minerals from brines15 Aug 2024US 2024/0271250 A1Lyten, Inc.
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