C25C 1/02
Electrolytic production, recovery or refining of metals by electrolysis of solutions: of
Official title: of light metals
C25C1/02 (Electrolytic production, recovery or refining of metals by electrolysis of solutions: of) appears on 106 US grants and 203 published applications in this corpus.
Search patents in C25C- Granted patents
- 106
- Published applications
- 203
- Assignees
- 108
- Inventors
- 431
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 3 | 2 |
| 2005 | 0 | 2 |
| 2006 | 1 | 3 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 4 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 2 | 3 |
| 2014 | 2 | 9 |
| 2015 | 5 | 11 |
| 2016 | 4 | 3 |
| 2017 | 3 | 4 |
| 2018 | 6 | 6 |
| 2019 | 2 | 6 |
| 2020 | 7 | 11 |
| 2021 | 3 | 9 |
| 2022 | 7 | 18 |
| 2023 | 10 | 23 |
| 2024 | 11 | 29 |
| 2025 | 18 | 33 |
| 2026 | 8 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrochemical recycling of lithium from lithium-based materials6 Oct 2026US 12,753,523 B2GM Global Technology Operations LLC
- High-selectivity hydrophilic electrode for extracting lithium and preparation method thereof22 Sep 2026US 12,742,250 B2Central South University
- Method and apparatus for extracting lithium from solution using bipolar electrodes30 Jun 2026US 12,668,887 B2Central South University
- Methods for extracting lithium from spodumene23 Jun 2026US 12,662,745 B2Xerion Advanced Battery Corp.
- Impurity control in lithium recovery14 Apr 2026US 12,601,076 B2Schlumberger Technology Corporation
- Method and reactor for the production of alkali metal8 Oct 2026US 2026/0308792 A1Electriq-Global Energy Solutions Ltd.
- Systems and methods for lithium extraction from aqueous feedstocks1 Oct 2026US 2026/0295534 A1University of Utah Research Foundation
- Methods for transforming silicate-containing materials into materials for co2 removal and other applications3 Sep 2026US 2026/0258567 A1Massachusetts Institute of Technology
- Liquid-liquid extraction system for electroactive metal electrodeposition from brine20 Aug 2026US 2026/0242970 A1Pure Lithium Corporation
- Method and apparatus for electrochemical ion exchange13 Aug 2026US 2026/0234032 A1Lithios Inc.
Most cited
By later US patents
- Method for electrochemically producing an alkali metal from an aqueous solution135US 6,770,187 B1BASF SE · 2004
- Method and electrode for electrochemical recovery of lithium value from aqueous solution77US 5,198,081 AJapan as represented by Director General of Agency of Industrial Science and Technology · 1993
- Low temperature alkali metal electrolysis77US 6,368,486 B1E. I. Du Pont de Nemours and Company · 2002
- Active metal electrolyzer60US 7,608,178 B2PolyPlus Battery Company · 2009
- Preparation of lithium carbonate from lithium chloride containing brines48US 9,034,294 B1Simbol Inc. · 2015