C22B 9/02
Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic
Official title: Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action {including acoustic waves; (C22B9/003, C22B9/006, C22B9/05, C22B9/22 take precedence)}
C22B9/02 (Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic) appears on 407 US grants and 281 published applications in this corpus.
Search patents in C22B- Granted patents
- 407
- Published applications
- 281
- Assignees
- 268
- Inventors
- 946
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 14 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 12 | 0 |
| 1982 | 9 | 0 |
| 1983 | 12 | 0 |
| 1984 | 14 | 0 |
| 1985 | 11 | 0 |
| 1986 | 9 | 0 |
| 1987 | 15 | 0 |
| 1988 | 14 | 0 |
| 1989 | 8 | 0 |
| 1990 | 12 | 0 |
| 1991 | 10 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 3 |
| 2002 | 10 | 8 |
| 2003 | 6 | 6 |
| 2004 | 3 | 6 |
| 2005 | 3 | 7 |
| 2006 | 1 | 7 |
| 2007 | 0 | 7 |
| 2008 | 4 | 12 |
| 2009 | 6 | 10 |
| 2010 | 7 | 14 |
| 2011 | 7 | 10 |
| 2012 | 16 | 12 |
| 2013 | 6 | 4 |
| 2014 | 7 | 11 |
| 2015 | 1 | 11 |
| 2016 | 13 | 10 |
| 2017 | 7 | 16 |
| 2018 | 8 | 10 |
| 2019 | 9 | 8 |
| 2020 | 11 | 14 |
| 2021 | 8 | 8 |
| 2022 | 10 | 15 |
| 2023 | 11 | 19 |
| 2024 | 10 | 24 |
| 2025 | 15 | 15 |
| 2026 | 4 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for recovering valuable metal from used LIB11 Aug 2026US 12,703,893 B2Mitsubishi Materials Corporation
- Methods and systems for separating metals12 May 2026US 12,623,161 B2Nant Holdings IP, LLC
- Separation of rare earth elements24 Mar 2026US 12,584,193 B2SHINE Technologies, LLC
- Phase change system and phase change crucible for the separation of rare earth elements3 Feb 2026US 12,540,371 B2SHINE Technologies, LLC
- Methods and systems for separating metals30 Dec 2025US 12,508,518 B2Nant Holdings IP, LLC
- Apparatus and method for fractionating alloy components in recycled alloy8 Oct 2026US 2026/0308715 A1Hyundai Motor Company
- Methods And Systems For Separating Metals6 Aug 2026US 2026/0224998 A1Nant Holdings IP, LLC
- Lithium recovery method25 Jun 2026US 2026/0176718 A1Honda Motor Co., Ltd.
- Separation of rare earth elements25 Jun 2026US 2026/0176719 A1SHINE Technologies, LLC
- Process for the oxidative pre-melting and smelting of a metalliferous feedstock material-containing agglomerate18 Jun 2026US 2026/0166509 A1African Rainbow Minerals Limited
Most cited
By later US patents
- Apparatus for filtration of molten metal134US 4,504,392 A1985
- Molten metal filter medium and method for making same133US 5,369,063 AMetaullics Systems Co., L.P. · 1994
- Molten metal filter cartridge115US 5,741,422 AMetaullics Systems Co., L.P. · 1998
- Modular filter for molten metal111US 6,231,639 B1Metaullics Systems Co., L.P. · 2001
- Gas pump for stirring molten metal107US 4,355,789 A1982