C22B 23/00
Obtaining nickel or cobalt
C22B23/00 (Obtaining nickel or cobalt) appears on 1,069 US grants and 1,181 published applications in this corpus.
Search patents in C22B- Granted patents
- 1,069
- Published applications
- 1,181
- Assignees
- 661
- Inventors
- 2,701
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 34 | 0 |
| 1977 | 27 | 0 |
| 1978 | 27 | 0 |
| 1979 | 20 | 0 |
| 1980 | 25 | 0 |
| 1981 | 17 | 0 |
| 1982 | 16 | 0 |
| 1983 | 25 | 0 |
| 1984 | 23 | 0 |
| 1985 | 20 | 0 |
| 1986 | 14 | 0 |
| 1987 | 18 | 0 |
| 1988 | 10 | 0 |
| 1989 | 15 | 0 |
| 1990 | 8 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 12 | 0 |
| 1996 | 6 | 0 |
| 1997 | 10 | 0 |
| 1998 | 10 | 0 |
| 1999 | 18 | 0 |
| 2000 | 12 | 0 |
| 2001 | 21 | 4 |
| 2002 | 24 | 20 |
| 2003 | 12 | 8 |
| 2004 | 19 | 19 |
| 2005 | 10 | 16 |
| 2006 | 10 | 17 |
| 2007 | 7 | 20 |
| 2008 | 8 | 29 |
| 2009 | 18 | 35 |
| 2010 | 24 | 38 |
| 2011 | 23 | 49 |
| 2012 | 28 | 27 |
| 2013 | 30 | 31 |
| 2014 | 31 | 37 |
| 2015 | 36 | 53 |
| 2016 | 24 | 32 |
| 2017 | 32 | 30 |
| 2018 | 33 | 32 |
| 2019 | 30 | 25 |
| 2020 | 24 | 40 |
| 2021 | 17 | 48 |
| 2022 | 21 | 50 |
| 2023 | 26 | 109 |
| 2024 | 61 | 139 |
| 2025 | 69 | 160 |
| 2026 | 42 | 113 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Two-step thermal treatment of nickel-containing sulfides for the production of ferronickel22 Sep 2026US 12,741,314 B2The Governing Council of the University of Toronto
- Method for separating nickel from lithium, and application thereof22 Sep 2026US 12,742,225 B2Suzhou Botree Cycling Sci & Tech Co., Ltd
- Integration of carbon sequestration with selective hydrometallurgical recovery of metal values22 Sep 2026US 12,742,226 B2Negative Emissions Materials, Inc.
- Impurity control in lithium-ion battery recycling1 Sep 2026US 12,725,847 B2Bluegrass Infrastructure Partners Holdings, LLC
- Methods for battery-grade aqueous solutions of nickel salts18 Aug 2026US 12,709,552 B2Bluegrass Infrastructure Partners Holdings, LLC
- Methods for carbon capture and metal recovery and related systems24 Sep 2026US 2026/0284595 A1Battelle Energy Alliance, LLC
- Recovery of lithium from black mass24 Sep 2026US 2026/0285700 A1Metso Finland Oy
- Process for extracting nickel from gasifier slag24 Sep 2026US 2026/0285702 A1Reliance Industries Limited
- Methods for reducing metal oxides with ammonia gas10 Sep 2026US 2026/0265846 A1Trustees of Tufts College
- Method for recovering metals from waste battery using magnetic field applied biological leaching process10 Sep 2026US 2026/0265858 A1Ak Tree Co., Ltd.
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
- Method for producing nanoparticles of transition metals185US 6,262,129 B1International Business Machines Corporation · 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