C22B 3/165
With organic acids
Official title: {with organic acids}
C22B3/165 (With organic acids) appears on 101 US grants and 135 published applications in this corpus.
Search patents in C22B- Granted patents
- 101
- Published applications
- 135
- Assignees
- 139
- Inventors
- 455
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 3 |
| 2003 | 1 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 3 |
| 2007 | 1 | 0 |
| 2008 | 2 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 5 |
| 2011 | 3 | 3 |
| 2012 | 2 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 5 |
| 2015 | 1 | 2 |
| 2016 | 4 | 6 |
| 2017 | 2 | 2 |
| 2018 | 1 | 2 |
| 2019 | 7 | 3 |
| 2020 | 3 | 3 |
| 2021 | 1 | 5 |
| 2022 | 2 | 8 |
| 2023 | 5 | 16 |
| 2024 | 5 | 22 |
| 2025 | 5 | 19 |
| 2026 | 8 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Selective recovery of Li18 Aug 2026US 12,709,786 B2Gelion Technologies Pty Ltd
- Methods and systems for leaching a metal-bearing material26 May 2026US 12,637,735 B2Freeport Minerals Corporation
- Integrated method for the commercial and industrial utilisation of calcium sulphate whilst obtaining rare earth elements from the production of phosphoric acid28 Apr 2026US 12,612,309 B2thyssenkrupp AG
- Hydrometallurgical recycling of lithium-ion battery electrodes7 Apr 2026US 12,597,651 B2Queen's University at Kingston
- Process and its products for spent lithium-ion batteries treatment31 Mar 2026US 12,592,423 B2Tsinghua University
- Extraction of radium from phosphogypsum17 Sep 2026US 2026/0275454 A1The Florida State University Research Foundation, Inc.
- Method for leaching rock metal component, method for storing carbon dioxide underground, and method for fixing carbon dioxide17 Sep 2026US 2026/0275851 A1Tohoku University
- Process for extracting metals from lithium-ion batteries13 Aug 2026US 2026/0234749 A1Arabat S.R.L.
- Methods for regenerating metal oxides13 Aug 2026US 2026/0237772 A1
- Method for leaching gold from a gold-bearing substrate6 Aug 2026US 2026/0226581 A1Universite Libre de Bruxelles
Most cited
By later US patents
- Process for the decontamination of toxic, heavy-metal containing soils41US 5,342,449 A1994
- Methods for mine tailing clean-up using recovery technologies25US 5,316,751 A1994
- Process for removing mercury from soil16US 5,785,935 A1998
- Process for removing heavy metals from paint chips15US 5,494,649 ACognis Corporation · 1996
- Mineral collector compositions and processes for making and using same15US 6,145,667 ACytec Technology Corp. · 2000