C01G 37/02
Oxides or hydrates thereof
C01G37/02 (Oxides or hydrates thereof) appears on 124 US grants and 79 published applications in this corpus.
Search patents in C01G- Granted patents
- 124
- Published applications
- 79
- Assignees
- 102
- Inventors
- 345
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 2 |
| 2004 | 2 | 4 |
| 2005 | 2 | 3 |
| 2006 | 3 | 4 |
| 2007 | 6 | 3 |
| 2008 | 0 | 4 |
| 2009 | 1 | 3 |
| 2010 | 2 | 6 |
| 2011 | 2 | 5 |
| 2012 | 3 | 3 |
| 2013 | 2 | 3 |
| 2014 | 4 | 6 |
| 2015 | 1 | 2 |
| 2016 | 3 | 4 |
| 2017 | 6 | 3 |
| 2018 | 2 | 6 |
| 2019 | 2 | 2 |
| 2020 | 9 | 4 |
| 2021 | 1 | 0 |
| 2022 | 2 | 1 |
| 2023 | 0 | 3 |
| 2024 | 1 | 1 |
| 2025 | 2 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Recycling of components contained in a residue obtained from the chloride process23 Dec 2025US 12,503,374 B2Kronos International, Inc.
- Method for directly preparing trivalent chromium compound by electrochemical oxidation of ferrochrome22 Apr 2025US 12,281,399 B1Qinghai Institute of Salt Lakes, Chinese Academy of Sciences
- Cu—Cr—Zn—O based pigment14 May 2024US 11,981,582 B2Tomatec Co., Ltd.
- Process for preparing an iron-chromium catalyst with a platinum promoter, and catalyst consisting of iron chromium with a platinum promoter8 Feb 2022US 11,241,683 B2Petroleo Brasileiro S.A. - Petrobras
- Hall bar device for memory and logic applications25 Jan 2022US 11,233,192 B1Board of Regents of the University of Nebraska
- Nano metal oxides, preparation method therefor, and use therefor20 Aug 2026US 2026/0242238 A1
- Sequential hydrometalurgical recovery of metal values with sequestered carbon11 Sep 2025US 2025/0282633 A1Negative Emissions Materials, Inc.
- Chiral metal oxide nanostructure, and method for producing same28 Aug 2025US 2025/0270361 A1Ewha University-Industry Collaboration Foundation
- Recycling of components contained in a residue obtained from the chloride process17 Apr 2025US 2025/0122090 A1Kronos International, Inc.
- Method for directly preparing trivalent chromium compound by electrochemical oxidation of ferrochrome3 Apr 2025US 2025/0109511 A1Qinghai Institute of Salt Lakes, Chinese Academy of Sciences
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
- Process for producing ultrafine particles of ceramics56US 4,642,207 ANational Research Institute for Metals · 1987
- Synthetic control of metal oxide nanocrystal sizes and shapes34US 7,531,149 B2Board of Trustees of the University of Arkansas · 2009
- Stabilized ferromagnetic chromium dioxide and process for its preparation23US 4,169,802 AMontedison S.p.A. · 1979
- Chromium aerogel method of producing same and fluorinating process utilizing same21US 4,828,818 AAllied-Signal Inc. · 1989