C22B 3/1658
Leaching with acyclic or carbocyclic agents of different types in admixture
Official title: {Leaching with acyclic or carbocyclic agents of different types in admixture, e.g. with organic acids added to oximes}
C22B3/1658 (Leaching with acyclic or carbocyclic agents of different types in admixture) appears on 15 US grants and 10 published applications in this corpus.
Search patents in C22B- Granted patents
- 15
- Published applications
- 10
- Assignees
- 19
- Inventors
- 37
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
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| 1987 | 2 | 0 |
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| 1992 | 1 | 0 |
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| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for acidic leaching of precious and chalcophile metals25 Feb 2025US 12,234,530 B2Covoro Mining Solutions, LLC
- Systems for recovering rare earth elements5 Feb 2019US 10,196,709 B2University of Houston System
- Stable aqueous composition of neutral collectors and their use in mineral beneficiation processes23 Oct 2018US 10,105,713 B2Clariant (Chile) Ltda.
- Methods and systems for recovering rare earth elements28 Jun 2016US 9,376,735 B2University of Houston System
- Process for the recovery of heavy metals such as lead from metal contaminated soil30 Jun 1998US 5,772,776 A
- Method for recovering rare earth elements from rare earth raw materials including rare earth elements28 May 2026US 2026/0146304 A1Korea Institute of Geoscience and Mineral Resources
- Process for acidic leaching of precious and chalcophile metals15 May 2025US 2025/0154623 A1Covoro Mining Solutions, LLC
- Apparatus and method for removing minerals from a mineral containing substance9 Jan 2025US 2025/0011895 A1Ripcell Limited
- Method for recycling hydrophobic deep eutectic solvent and nickel leaching method7 Mar 2024US 2024/0076548 A1Kyushu University, National University Corporation
- Leaching of precious and chalcophile metals4 Jan 2024US 2024/0002972 A1Mining and Process Solutions Pty Ltd
Most cited
By later US patents
- Process for the recovery of heavy metals such as lead from metal contaminated soil14US 5,772,776 A1998
- Process for beneficiating oxide ores6US 4,205,979 AHazen Research, Inc. · 1980
- Aqueous recovery of cobalt or cobalt and manganese from solution also containing oxygenated aromatic compounds5US 4,680,098 AAmoco Corporation · 1987
- Method for dissolution of metal5US 5,120,523 AAgency of Industrial Science & Technology, Ministry of International Trade & Industry · 1992
- Process for beneficiating oxide ores3US 4,257,881 AHazen Research, Inc. · 1981