C01F 7/54
Double compounds containing both aluminium and alkali metals or alkaline-earth metals
C01F7/54 (Double compounds containing both aluminium and alkali metals or alkaline-earth metals) appears on 49 US grants and 49 published applications in this corpus.
Search patents in C01F- Granted patents
- 49
- Published applications
- 49
- Assignees
- 41
- Inventors
- 145
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 3 | 10 |
| 2014 | 4 | 4 |
| 2015 | 2 | 5 |
| 2016 | 0 | 1 |
| 2017 | 2 | 0 |
| 2018 | 2 | 2 |
| 2019 | 2 | 3 |
| 2020 | 0 | 2 |
| 2021 | 2 | 3 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 1 | 4 |
| 2025 | 1 | 5 |
| 2026 | 1 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for efficiently removing fluorine from spent lithium battery21 Apr 2026US 12,606,885 B2Guangdong Brunp Recycling Technology Co., Ltd.
- Lithium-aluminum-fluorine-chlorine/bromine-containing electrolyte material and battery including the same7 Jan 2025US 12,191,445 B2Panasonic Intellectual Property Management Co., Ltd.
- Fluorescent body, method for manufacturing same, and light-emitting device using same31 Dec 2024US 12,180,402 B2National Institute for Materials Science
- Method for transforming a crystal form of an electrolyte containing lithium for aluminum electrolysis31 Jan 2023US 11,566,336 B2Northeastern University
- Nonlinear optical material1 Mar 2022US 11,262,640 B2University of Houston System
- Precipitation of cryolite in the max/mxene etching process - recovery of flouorine and reduction of wastewater10 Sep 2026US 2026/0265072 A1Drexel University
- Solid electrolyte, method of producing solid electrolyte, and battery16 Jul 2026US 2026/0204634 A1Nagoya Institute of Technology
- Solid electrolyte, method of producing solid electrolyte, and battery16 Jul 2026US 2026/0204635 A1Nagoya Institute of Technology
- Inorganic compound particle producing apparatus2 Jul 2026US 2026/0184585 A1Panasonic Intellectual Property Management Co., Ltd.
- Inorganic compound particle producing apparatus2 Jul 2026US 2026/0184586 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Process for recovery of alumina-cryolite waste in aluminum production29US 4,053,375 ADorr-Oliver Incorporated · 1977
- Process for preparing cryolite from fly ash21US 4,362,703 AIowa State University Research Foundation, Inc. · 1982
- High purity potassium tetrafluoroaluminate and method of making same20US 5,242,669 AThe S. A. Day Mfg. Co., Inc. · 1993
- Process of producing potassium tetrafluoro aluminate17US 4,428,920 AKali-Chemie Aktiengesellschaft · 1984
- Process for preparation of silane16US 5,075,092 AEthyl Corporation · 1991