C22B 15/0065
Leaching or slurrying
Official title: {Leaching or slurrying (with organic compounds C22B3/16)}
C22B15/0065 (Leaching or slurrying) appears on 606 US grants and 562 published applications in this corpus.
Search patents in C22B- Granted patents
- 606
- Published applications
- 562
- Assignees
- 373
- Inventors
- 1,325
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 29 | 0 |
| 1977 | 24 | 0 |
| 1978 | 28 | 0 |
| 1979 | 17 | 0 |
| 1980 | 8 | 0 |
| 1981 | 6 | 0 |
| 1982 | 12 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 9 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 7 | 0 |
| 1999 | 15 | 0 |
| 2000 | 5 | 0 |
| 2001 | 14 | 2 |
| 2002 | 10 | 8 |
| 2003 | 8 | 8 |
| 2004 | 7 | 19 |
| 2005 | 7 | 20 |
| 2006 | 4 | 17 |
| 2007 | 6 | 8 |
| 2008 | 9 | 19 |
| 2009 | 19 | 21 |
| 2010 | 21 | 22 |
| 2011 | 10 | 12 |
| 2012 | 14 | 14 |
| 2013 | 15 | 12 |
| 2014 | 10 | 7 |
| 2015 | 9 | 16 |
| 2016 | 10 | 27 |
| 2017 | 9 | 22 |
| 2018 | 19 | 23 |
| 2019 | 15 | 22 |
| 2020 | 30 | 32 |
| 2021 | 17 | 17 |
| 2022 | 16 | 24 |
| 2023 | 17 | 38 |
| 2024 | 27 | 56 |
| 2025 | 28 | 49 |
| 2026 | 25 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Integrated recovery of metals from complex substrates22 Sep 2026US 12,742,224 B2Yava International Inc.
- Binder for an agglomeration process8 Sep 2026US 12,729,161 B2Mintek
- System and method for activating deep raffinate injection based on ore placement8 Sep 2026US 12,731,086 B2Freeport Minerals Corporation
- Acid impacts on a leach stockpile8 Sep 2026US 12,731,087 B2Freeport Minerals Corporation
- Carbonation and selective leaching for the recovery of metals11 Aug 2026US 12,703,894 B2Phoenix Tailings, Inc.
- Systems and methods for improved metal recovery by leaching8 Oct 2026US 2026/0308711 A1Freeport Minerals Corporation
- Systems and methods for improved metal recovery by leaching8 Oct 2026US 2026/0308712 A1Freeport Minerals Corporation
- Acid impacts on a leach stockpile1 Oct 2026US 2026/0300850 A1Freeport Minerals Corporation
- Recovery of lithium from black mass24 Sep 2026US 2026/0285700 A1Metso Finland Oy
- System and method for adjusting leaching operations based on leach analytic data24 Sep 2026US 2026/0289438 A1Freeport Minerals Corporation
Most cited
By later US patents
- Processes and intermediates for preparing anti-cancer compounds70US 6,476,040 B1Pfizer Inc. · 2002
- Recovery of precious metals from metal sulphides66US 4,070,182 ASherritt Gordon Mines Limited · 1978
- Hydrometallurgical process for the treatment of copper-bearing ore59US 5,356,457 ACorporacion Nacional del Cobre de Chile · 1994
- Recovery of copper values from copper ores56US 6,319,389 B1Hydromet Systems, L.L.C. · 2001
- Hydrometallurgical process for extracting copper from chalcopyrite or bornite concentrates52US 3,949,051 A1976