C25C 3/26
Electrolytic production, recovery or refining of metals by electrolysis of melts: of
Official title: of titanium, zirconium, hafnium, tantalum or vanadium
C25C3/26 (Electrolytic production, recovery or refining of metals by electrolysis of melts: of) appears on 108 US grants and 145 published applications in this corpus.
Search patents in C25C- Granted patents
- 108
- Published applications
- 145
- Assignees
- 88
- Inventors
- 288
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 4 |
| 2004 | 2 | 9 |
| 2005 | 2 | 4 |
| 2006 | 0 | 10 |
| 2007 | 5 | 8 |
| 2008 | 1 | 7 |
| 2009 | 3 | 7 |
| 2010 | 3 | 6 |
| 2011 | 3 | 5 |
| 2012 | 1 | 6 |
| 2013 | 1 | 6 |
| 2014 | 4 | 8 |
| 2015 | 6 | 3 |
| 2016 | 5 | 5 |
| 2017 | 3 | 4 |
| 2018 | 8 | 7 |
| 2019 | 3 | 4 |
| 2020 | 2 | 5 |
| 2021 | 3 | 6 |
| 2022 | 6 | 5 |
| 2023 | 2 | 4 |
| 2024 | 5 | 13 |
| 2025 | 4 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and process for sustainable electrowinning of metal16 Jun 2026US 12,655,533 B2Case Western Reserve University
- System and method for extraction and refining of titanium7 Oct 2025US 12,435,438 B2Universal Achemetal Titanium, LLC
- Systems and methods for recovery of substances from molten salt electrolysis15 Jul 2025US 12,357,945 B2Phoenix Tailings, Inc.
- Systems and methods for feeding solid material and a gas into an electrolytic cell15 Jul 2025US 12,359,329 B2Phoenix Tailings, Inc.
- Treatment of metal ores4 Feb 2025US 12,215,436 B2
- Systems and methods for recovery of substances from molten salt electrolysis5 Feb 2026US 2026/0034510 A1Phoenix Tailings, Inc.
- System and method for extraction and refining of titanium29 Jan 2026US 2026/0028740 A1Universal Achemetal Titanium, LLC
- Methods, systems, and devices for purifying metal-containing material1 Jan 2026US 2026/0002276 A1Form Energy, Inc.
- Systems and methods for feeding solid material and a gas into an electrolytic cell18 Dec 2025US 2025/0382718 A1Phoenix Tailings, Inc.
- Method for Producing Titanium-Based Electrolytic Raw Material and Method for Producing Metallic Titanium or Ti-Al Alloy20 Nov 2025US 2025/0354284 A1Toho Titanium Co., Ltd.
Most cited
By later US patents
- Method of extraction of valuable minerals and precious metals from oil sands ore bodies and other related ore bodies60US 5,124,008 ASolv-Ex Corporation · 1992
- Method for electrowinning of titanium metal or alloy from titanium oxide containing compound in the liquid state44US 7,504,017 B2Qit-Fer et Titane Inc. · 2009
- Extraction of liquid elements by electrolysis of oxides43US 8,764,962 B2Massachusetts Institute of Technology · 2014
- Electrolytic production of metals using consumable anodes40US 5,185,068 AMassachusetts Institute of Technology · 1993
- Method for producing titanium crystal and titanium27US 6,063,254 AThe Alta Group, Inc. · 2000