C22B 47/0054
Leaching processes
Official title: {leaching processes}
C22B47/0054 (Leaching processes) appears on 74 US grants and 63 published applications in this corpus.
Search patents in C22B- Granted patents
- 74
- Published applications
- 63
- Assignees
- 77
- Inventors
- 228
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 11 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 4 |
| 2016 | 3 | 1 |
| 2017 | 1 | 0 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 2 | 4 |
| 2022 | 1 | 7 |
| 2023 | 3 | 11 |
| 2024 | 5 | 8 |
| 2025 | 8 | 10 |
| 2026 | 0 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Graphite recovery in recycled batteries4 Nov 2025US 12,463,266 B2Ascend Elements, Inc.
- Method for reducing waste by recovering transition metals from lithium secondary battery21 Oct 2025US 12,451,533 B2SK Innovation Co., Ltd.
- Treatment process for crystallizing a metal sulfate14 Oct 2025US 12,441,621 B2Hatch Ltd.
- Method for recycling lithium batteries9 Sep 2025US 12,412,941 B2Duesenfeld GmbH
- Process for recovering cobalt ion, nickel ion and manganese ion from metal-containing residues5 Aug 2025US 12,378,636 B2Fundacion Tecnalia Research & Innovation
- Green method for hydrometallurgical production of nickel-cobalt-manganese new energy raw material from laterite nickel ore20 Aug 2026US 2026/0242242 A1Gem Co., Ltd.
- Process for the recovery of manganese2 Jul 2026US 2026/0185188 A1Element 25 Limited
- Method for recycling lithium batteries19 Mar 2026US 2026/0081249 A1Duesenfeld GmbH
- Treatment process for crystallizing a metal sulfate12 Mar 2026US 2026/0070803 A1Hatch Ltd.
- Process for selectively capturing chemical elements from a polymetallic sample26 Feb 2026US 2026/0055006 A1Centre National De La Recherche Scientifique
Most cited
By later US patents
- Extraction of metals from sea nodules33US 4,029,733 ACommissariat A L' Energie Atomique · 1977
- Process for recovering metal values such as scandium, iron and manganese from an industrial waste sludge27US 4,988,487 AGTE Laboratories Incorporated · 1991
- Manganese nitrate spray decomposition19US 4,310,494 AChemetals Corporation · 1982
- Leaching process for nickel cobalt and manganese ores19US 5,393,320 ARMG Services Pty. Ltd. · 1995
- Recovering metal values from marine manganese nodules17US 4,123,499 AChemetals Corporation · 1978