C22B 23/021
By reduction in solid state
Official title: {by reduction in solid state, e.g. by segregation processes}
C22B23/021 (By reduction in solid state) appears on 62 US grants and 75 published applications in this corpus.
Search patents in C22B- Granted patents
- 62
- Published applications
- 75
- Assignees
- 70
- Inventors
- 200
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 3 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 3 | 3 |
| 2010 | 3 | 4 |
| 2011 | 0 | 4 |
| 2012 | 2 | 0 |
| 2013 | 4 | 6 |
| 2014 | 3 | 0 |
| 2015 | 3 | 1 |
| 2016 | 1 | 0 |
| 2017 | 2 | 4 |
| 2018 | 3 | 3 |
| 2019 | 1 | 1 |
| 2020 | 1 | 3 |
| 2021 | 2 | 1 |
| 2022 | 0 | 2 |
| 2023 | 3 | 8 |
| 2024 | 0 | 13 |
| 2025 | 5 | 6 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for recovering valuable metal from used LIB11 Aug 2026US 12,703,893 B2Mitsubishi Materials Corporation
- Method for recovering active metal of lithium secondary battery3 Feb 2026US 12,542,310 B2SK Innovation Co., Ltd.
- Recovery of nickel and cobalt from Li-ion batteries or their waste16 Sep 2025US 12,416,065 B2Umicore AG & Co. KG
- Battery recycling by reduction and carbonylation9 Sep 2025US 12,412,942 B2BASF SE
- Treatment method for laterite nickel ore by curing and roasting-water leaching-atmospheric pressure acid leaching2 Sep 2025US 12,404,567 B2Gem Co., Ltd.
- Methods for reducing metal oxides with ammonia gas10 Sep 2026US 2026/0265846 A1Trustees of Tufts College
- High-temperature reduction device for waste battery recycling and heat treatment method for waste battery recycling16 Jul 2026US 2026/0199943 A1Posco
- Method for recovering valuable materials from lithium ion secondary batteries4 Jun 2026US 2026/0151778 A1Dowa Eco-System Co., Ltd.
- Method of Obtaining a Nickel Ore Concentrate, Method of Processing a Nickel Ore Concentrate, and Method of Recovering Materials Derived from Nickel Ore21 May 2026US 2026/0139342 A1New Wave Royalties Sociedad Anonima
- Method for recycling waste batteries19 Mar 2026US 2026/0081248 A1Posco
Most cited
By later US patents
- Cryoplasty device and method384US 5,868,735 ASciMed Life Systems, Inc. · 1999
- Cryoplasty device and method227US 6,290,696 B1SciMed Life Systems, Inc. · 2001
- Cryoplasty device and method182US 6,648,878 B2SciMed Life Systems, Inc. · 2003
- Cryoplasty device and method170US 7,022,120 B2SciMed Life Systems, Inc. · 2006
- Process for smelting nickel47US 4,466,828 AToyo Engineering Corporation · 1984