C25C 3/24
Refining
C25C3/24 (Refining) appears on 28 US grants and 31 published applications in this corpus.
Search patents in C25C- Granted patents
- 28
- Published applications
- 31
- Assignees
- 29
- Inventors
- 92
- Latest grant
- 4 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 3 | 6 |
| 2017 | 1 | 1 |
| 2018 | 2 | 0 |
| 2019 | 2 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 5 |
| 2025 | 0 | 2 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power generation apparatus and power generation method4 Jun 2024US 12,003,002 B2Kabushiki Kaisha Toyota Chuo Kenkyusho
- Systems and methods for purifying aluminum11 May 2021US 11,001,931 B2Alcoa USA Corp.
- Systems and methods for purifying aluminum10 Sep 2019US 10,407,786 B2Alcoa USA Corp.
- Aluminium smelter comprising a compensating electric circuit9 Jul 2019US 10,344,390 B2Rio Tinto Alcan International Limited
- Electrolytic cell3 Apr 2018US 9,932,681 B2Saint-Gobain Centre De Recherches Et D ' Etudes Europeen
- Method and device for electro chemical refining of aluminium in cells (variants)16 Jul 2026US 2026/0201589 A1
- Scrap Aluminum Alloy Purification Process11 Jun 2026US 2026/0159977 A1Apple Inc.
- Products, systems, and methods for transporting metal12 Feb 2026US 2026/0043163 A1Alcoa USA Corp.
- Methods, systems, and devices for purifying metal-containing material1 Jan 2026US 2026/0002276 A1Form Energy, Inc.
- Systems and methods of recycling aluminum scrap and associated products9 Oct 2025US 2025/0313979 A1Alcoa USA Corp.
Most cited
By later US patents
- Electrolytic production of aluminum28US 4,650,552 AEltech Systems Corporation · 1987
- Aluminum purification14US 4,115,215 AAluminum Company of America · 1978
- Production of extreme purity aluminum14US 4,222,830 AAluminum Company of America · 1980
- Production of extreme purity aluminum14US 4,239,606 AAluminum Company of America · 1980
- Production of extreme purity aluminum12US 4,273,627 AAluminum Company of America · 1981