C01F 7/14
Aluminium oxide or hydroxide from alkali metal aluminates
C01F7/14 (Aluminium oxide or hydroxide from alkali metal aluminates) appears on 193 US grants and 116 published applications in this corpus.
Search patents in C01F- Granted patents
- 193
- Published applications
- 116
- Assignees
- 113
- Inventors
- 400
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 7 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 13 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 10 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 9 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 4 |
| 2004 | 1 | 1 |
| 2005 | 3 | 3 |
| 2006 | 0 | 4 |
| 2007 | 0 | 5 |
| 2008 | 3 | 3 |
| 2009 | 1 | 7 |
| 2010 | 5 | 5 |
| 2011 | 5 | 7 |
| 2012 | 5 | 6 |
| 2013 | 4 | 7 |
| 2014 | 6 | 8 |
| 2015 | 8 | 2 |
| 2016 | 3 | 4 |
| 2017 | 4 | 11 |
| 2018 | 4 | 8 |
| 2019 | 9 | 4 |
| 2020 | 6 | 5 |
| 2021 | 3 | 3 |
| 2022 | 1 | 3 |
| 2023 | 3 | 4 |
| 2024 | 4 | 2 |
| 2025 | 3 | 5 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Alumina modified with a short chain carboxylic acid for use as a coating and a method for producing the same10 Mar 2026US 12,570,538 B2
- Heat exchanger3 Feb 2026US 12,540,775 B2
- Method for recovering lithium from brine5 Aug 2025US 12,378,638 B2Korea Institute of Geoscience and Mineral Resources
- Chemical synthesis of boehmite3 Jun 2025US 12,319,586 B2Iran University of Science and Technology
- Method for treating an industrial effluent charged with aluminium using CO220 May 2025US 12,304,828 B2L'Air Liquide, Société Anonyme pour l'Etude et Georges Claude
- Comprehensive utilization method for steel making slag13 Aug 2026US 2026/0234753 A1Yuanchu Technology (Beijing) Co., Ltd.
- Method for producing iota alumina and iota alumina15 Jan 2026US 2026/0015248 A1Nippon Light Metal Company, Ltd.
- Mesoporous Pseudo-boehmite Rich in Surface Hydroxyl Groups, Catalytic Cracking Catalyst Containing the Pseudo-boehmite, and Preparation and Application Thereof15 Jan 2026US 2026/0015249 A1China Petroleum & Chemical Corporation
- Pseudo-boehmite and its preparation method, and a catalytic cracking catalyst containing the pseudo-boehmite, and its preparation and application4 Dec 2025US 2025/0368523 A1China Petroleum & Chemical Corporation
- Process for the preparation of particulate alumina11 Sep 2025US 2025/0282634 A1BASF SE
Most cited
By later US patents
- Crystalline lithium aluminates62US 4,348,296 AThe Dow Chemical Company · 1982
- Reinforcing aluminum-based filler and rubber composition comprising such a filter55US 6,610,261 B1Compagnie Generale des Etablissements Michelin - Michelin & Cie · 2003
- Process for continuous crystallization46US 4,332,592 A1982
- Process for the production of alumina36US 4,019,978 ALaporte Industries Limited · 1977
- Coarsening of partially calcined alumina dust33US 4,051,222 AAlcan Research and Development Limited · 1977