C22B 3/24
By adsorption on solid substances
Official title: by adsorption on solid substances, e.g. by extraction with solid resins
C22B3/24 (By adsorption on solid substances) appears on 423 US grants and 416 published applications in this corpus.
Search patents in C22B- Granted patents
- 423
- Published applications
- 416
- Assignees
- 400
- Inventors
- 1,373
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 11 | 0 |
| 1982 | 6 | 0 |
| 1983 | 17 | 0 |
| 1984 | 15 | 0 |
| 1985 | 9 | 0 |
| 1986 | 11 | 0 |
| 1987 | 6 | 0 |
| 1988 | 11 | 0 |
| 1989 | 10 | 0 |
| 1990 | 11 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 7 |
| 2003 | 5 | 5 |
| 2004 | 3 | 6 |
| 2005 | 6 | 7 |
| 2006 | 4 | 5 |
| 2007 | 4 | 3 |
| 2008 | 2 | 8 |
| 2009 | 6 | 12 |
| 2010 | 4 | 9 |
| 2011 | 5 | 14 |
| 2012 | 7 | 12 |
| 2013 | 16 | 13 |
| 2014 | 12 | 11 |
| 2015 | 12 | 11 |
| 2016 | 10 | 6 |
| 2017 | 6 | 8 |
| 2018 | 6 | 12 |
| 2019 | 9 | 14 |
| 2020 | 10 | 13 |
| 2021 | 10 | 17 |
| 2022 | 12 | 18 |
| 2023 | 12 | 48 |
| 2024 | 11 | 44 |
| 2025 | 29 | 59 |
| 2026 | 26 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for improving lithium yield in a direct lithium extraction process11 Aug 2026US 12,702,987 B2Aquatech International Corporation
- Process for recovering and purifying lithium11 Aug 2026US 12,703,896 B2Fortum Battery Recycling Oy
- Method of producing and refining carrier-free lutetium-177 using chromatography11 Aug 2026US 12,703,897 B2Korea Atomic Energy Research Institute
- Methods of sequestering target elements28 Jul 2026US 12,691,185 B2Lawrence Livermore National Security, LLC
- Method for recovering lithium from lithium-containing solution30 Jun 2026US 12,668,856 B2BYD Company Limited
- Oxime-based adsorbents and methods of use for selective separation of rare earth elements8 Oct 2026US 2026/0307049 A1The Board of Regents of the University of Oklahoma
- Synthesis of bio-based catecholic acid- and derivatives-functionalized adsorbents for recovery of metals and metalloids from acidic solutions8 Oct 2026US 2026/0307051 A1The Penn State Research Foundation
- Method of recovery of scandium8 Oct 2026US 2026/0308716 A1Nippon Steel Corporation
- Process for using modified dtpa-associated organosilica media for producing individually separated high purity rare earth elements8 Oct 2026US 2026/0308717 A1Wayne State University
- Resin for extracting lithium from lithium precipitation mother liquor, and preparation method and application thereof17 Sep 2026US 2026/0273509 A1Xi'an Lanshen New Material Technology Co., Ltd.
Most cited
By later US patents
- Surface-functionalized mesoporous carbon materials255US 9,249,241 B2UT-Battelle, LLC · 2016
- Adsorbent compositions173US 4,474,896 AUnion Carbide Corporation · 1984
- Process for the recovery of gold from carbonaceous ores66US 4,289,532 AFreeport Minerals Corporation · 1981
- Silver removal with halogen impregnated activated carbon65US 4,394,354 ACalgon Carbon Corporation · 1983
- Hg removal from wastewater by regenerative adsorption62US 5,080,799 AMobil Oil Corporation · 1992