C01F 7/58
Preparation of anhydrous aluminium chloride
C01F7/58 (Preparation of anhydrous aluminium chloride) appears on 103 US grants and 27 published applications in this corpus.
Search patents in C01F- Granted patents
- 103
- Published applications
- 27
- Assignees
- 44
- Inventors
- 159
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 13 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 13 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 2 | 2 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 3 |
| 2018 | 3 | 1 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 3 |
| 2025 | 2 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing highB purity aluminum from aluminum chloride25 Aug 2026US 12,715,778 B2Aluminum Technologies, LLC
- Process for selective chlorination of aluminous ores for the preparation of aluminum6 Jan 2026US 12,515,961 B2Aluminum Technologies, LLC
- Reduction cell for producing aluminum6 Jan 2026US 12,515,962 B2Aluminum Technologies, LLC
- Chemical synthesis of boehmite3 Jun 2025US 12,319,586 B2Iran University of Science and Technology
- Process for pure carbon production18 Feb 2025US 12,227,417 B2West Virginia University Board of Governors on behalf of West Virginia University
- Method for producing iron chloride and aluminum chloride from sewage sludge ashes17 Sep 2026US 2026/0274701 A1LANXESS Deutschland GmbH
- High efficiency acid-base leaching methods and systems25 Dec 2025US 2025/0388512 A1Sublime Systems, Inc.
- A process and apparatus for production of aluminium, and a process and apparatus for production of an aluminium chloride containing feedstock28 Aug 2025US 2025/0270724 A1Norsk Hydro ASA
- Reduction cell for producing aluminum24 Oct 2024US 2024/0351898 A1Aluminum Technologies, LLC
- Method for producing highb purity aluminum from aluminum chloride24 Oct 2024US 2024/0351899 A1Aluminum Technologies, LLC
Most cited
By later US patents
- Preparation of metal halide-amine complexes153US 5,045,244 AEthyl Corporation · 1991
- Anhydrous separation of volatile aluminum chloride complex from an ethylbenzene production stream by distillation47US 4,282,071 AThe Dow Chemical Company · 1981
- Aluminum production via the chlorination of partially calcined aluminum chloride hexahydrate30US 4,465,659 AAtlantic Richfield Company · 1984
- Method of producing anhydrous aluminum chloride from acid leach-derived ACH and the production of aluminum therefrom17US 4,465,566 AAtlantic Richfield Company · 1984
- Process for the production of hydrogen17US 5,286,473 A1994