C01F 5/145
Purification
Official title: {Purification}
C01F5/145 (Purification) appears on 4 US grants and 7 published applications in this corpus.
Search patents in C01F- Granted patents
- 4
- Published applications
- 7
- Assignees
- 6
- Inventors
- 19
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 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 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Facile, low-energy routes for the production of hydrated calcium and magnesium salts from alkaline industrial wastes23 Dec 2025US 12,503,372 B2The Regents of the University of California
- Facile, low-energy routes for the production of hydrated calcium and magnesium salts from alkaline industrial wastes24 Jan 2023US 11,560,318 B2The Regents of the University of California
- Process for the purification of magnesium hydroxide6 May 1997US 5,626,825 AVBC, Inc.
- Process for producing highly pure magnesium hydroxide15 Sep 1987US 4,693,872 AAsahi Glass Company, Limited
- Electrochemical metallurgical slag recycling14 May 2026US 2026/0132484 A1Electrasteel, Inc.
- Mineral recovery and chemical production from produced water in a gas oil separation plant12 Mar 2026US 2026/0070826 A1Saudi Arabian Oil Company
- Methods and processes for the use of calcium- and magnesium-bearing oxides, hydroxides, and silicates; calcium- and magnesium-bearing aqueous streams to capture, convert, and store carbon dioxide and produce hydrogen20 Nov 2025US 2025/0353740 A1Cornell University
- Facile, low-energy routes for the production of hydrated calcium and magnesium salts from alkaline industrial wastes25 May 2023US 2023/0159346 A1The Regents of the University of California
- Methods and processes for the use of calcium- and magnesium-bearing oxides, hydroxides, and silicates; calcium- and magnesium-bearing aqueous streams to capture, convert, and store carbon dioxide and produce hydrogen19 Jan 2023US 2023/0021218 A1Cornell University
Most cited
By later US patents
- Process for producing highly pure magnesium hydroxide6US 4,693,872 AAsahi Glass Company, Limited · 1987
- Process for the purification of magnesium hydroxide3US 5,626,825 AVBC, Inc. · 1997
- Facile, low-energy routes for the production of hydrated calcium and magnesium salts from alkaline industrial wastes1US 11,560,318 B2The Regents of the University of California · 2023