C25C 3/32
Electrolytic production, recovery or refining of metals by electrolysis of melts: of
Official title: of chromium
C25C3/32 (Electrolytic production, recovery or refining of metals by electrolysis of melts: of) appears on 12 US grants and 19 published applications in this corpus.
Search patents in C25C- Granted patents
- 12
- Published applications
- 19
- Assignees
- 12
- Inventors
- 32
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
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| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 3 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Localized electrorefining of metals and alloys16 Sep 2025US 12,416,094 B2Battelle Savannah River Alliance, LLC
- Systems and methods for recovery of substances from molten salt electrolysis15 Jul 2025US 12,357,945 B2Phoenix Tailings, Inc.
- Treatment of metal ores4 Feb 2025US 12,215,436 B2
- Electrochemical method for high-temperature molten salt electrolysis in humid atmosphere13 Feb 2024US 11,897,780 B2Northeastern University
- Electrolytic method, apparatus and product4 Sep 2018US 10,066,307 B2Metalysis Limited
- Systems and methods for recovery of substances from molten salt electrolysis5 Feb 2026US 2026/0034510 A1Phoenix Tailings, Inc.
- Treatment of Metal Ores3 Oct 2024US 2024/0328021 A1Chinuka Limited
- Systems and methods for recovery of substances from molten salt electrolysis14 Mar 2024US 2024/0082783 A1Phoenix Tailings, Inc.
- Reduction system and method for high-melting point metal oxides, using liquid metal crucible25 Jan 2024US 2024/0026555 A1
- Localized electrorefining of metals and alloys27 Jul 2023US 2023/0235477 A1Battelle Savannah River Alliance, LLC
Most cited
By later US patents
- Extraction of liquid elements by electrolysis of oxides43US 8,764,962 B2Massachusetts Institute of Technology · 2014
- Process for the electrolytic production of metals from a fused salt melt with a liquid cathode14US 4,853,094 AShell Internationale Research Maatschappij B. V. · 1989
- Thermal and electrochemical process for metal production12US 7,410,562 B2Materials & Electrochemical Research Corp. · 2008
- Thermal and electrochemical process for metal production8US 7,985,326 B2Materials & Electrochemical Research Corp. · 2011
- Thermal and electrochemical process for metal production3US 9,249,520 B2Materials & Electrochemical Research Corp. · 2016