C01G 51/05
Hydroxides
Official title: Hydroxides; Oxyhydroxides
C01G51/05 (Hydroxides) appears on 82 US grants and 80 published applications in this corpus.
Search patents in C01G- Granted patents
- 82
- Published applications
- 80
- Assignees
- 82
- Inventors
- 283
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 3 |
| 2002 | 2 | 1 |
| 2003 | 4 | 0 |
| 2004 | 2 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 7 |
| 2009 | 0 | 6 |
| 2010 | 2 | 3 |
| 2011 | 3 | 3 |
| 2012 | 2 | 0 |
| 2013 | 4 | 2 |
| 2014 | 2 | 2 |
| 2015 | 0 | 1 |
| 2016 | 2 | 5 |
| 2017 | 2 | 7 |
| 2018 | 2 | 2 |
| 2019 | 8 | 3 |
| 2020 | 3 | 3 |
| 2021 | 4 | 3 |
| 2022 | 2 | 4 |
| 2023 | 3 | 5 |
| 2024 | 5 | 8 |
| 2025 | 2 | 4 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Production method for cobalt sulfate26 May 2026US 12,637,361 B2Sumitomo Metal Mining Co., Ltd.
- Processes for preparing hydroxides and oxides of various metals and derivatives thereof21 Apr 2026US 12,606,456 B2Nemaska Lithium Inc.
- Cobalt sulfide/reduced graphite oxide composite and application thereof in gas sensors27 Jan 2026US 12,534,384 B2Soochow University
- Method for producing mixed metal solution and method for producing mixed metal salt27 Jan 2026US 12,534,776 B2Jx Metals Circular Solutions Co., Ltd.
- Treatment process for crystallizing a metal sulfate14 Oct 2025US 12,441,621 B2Hatch Ltd.
- Processes for preparing hydroxides and oxides of various metals and derivatives thereof13 Aug 2026US 2026/0234024 A1Nemaska Lithium Inc.
- Process for extracting metals from lithium-ion batteries13 Aug 2026US 2026/0234749 A1Arabat S.R.L.
- Treatment process for crystallizing a metal sulfate12 Mar 2026US 2026/0070803 A1Hatch Ltd.
- Processes for preparing hydroxides and oxides of various metals and derivatives thereof25 Sep 2025US 2025/0296852 A1Nemaska Lithium Inc.
- Sequential hydrometalurgical recovery of metal values with sequestered carbon11 Sep 2025US 2025/0282633 A1Negative Emissions Materials, Inc.
Most cited
By later US patents
- Plasma synthesis of lithium based intercalation powders for solid polymer electrolyte batteries99US 6,838,072 B1The United States of America as represented by the United States Department of Energy · 2005
- Nanostructured oxides and hydroxides and methods of synthesis therefor70US 6,162,530 AUniversity of Connecticut · 2000
- Methods of synthesis for nanostructured oxides and hydroxides39US 6,517,802 B1Rutgers, The State University of New Jersey · 2003
- Method for producing fine spherical particles of carbonate or hydroxide of nickel, cobalt or copper37US 6,197,273 B1Sakai Chemical Industry Co., Ltd. · 2001
- Positive electrode material for alkaline storage battery, method of producing the same, and alkaline storage battery using the same24US 6,083,642 AMatsushita Electric Industrial Co., Ltd. · 2000