C01G 3/02
Oxides
Official title: Oxides; Hydroxides
C01G3/02 (Oxides) appears on 210 US grants and 261 published applications in this corpus.
Search patents in C01G- Granted patents
- 210
- Published applications
- 261
- Assignees
- 231
- Inventors
- 749
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 3 | 4 |
| 2003 | 5 | 5 |
| 2004 | 1 | 4 |
| 2005 | 1 | 3 |
| 2006 | 4 | 11 |
| 2007 | 4 | 9 |
| 2008 | 2 | 12 |
| 2009 | 2 | 2 |
| 2010 | 6 | 16 |
| 2011 | 12 | 8 |
| 2012 | 6 | 11 |
| 2013 | 3 | 7 |
| 2014 | 6 | 9 |
| 2015 | 11 | 9 |
| 2016 | 9 | 13 |
| 2017 | 12 | 20 |
| 2018 | 10 | 20 |
| 2019 | 8 | 10 |
| 2020 | 15 | 15 |
| 2021 | 11 | 16 |
| 2022 | 7 | 12 |
| 2023 | 8 | 10 |
| 2024 | 13 | 13 |
| 2025 | 11 | 16 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Near infrared transmitting copper oxide nanoparticles21 Jul 2026US 12,686,620 B2Toyota Motor Engineering & Manufacturing North America, Inc.
- Method for recycling silver from waste IC chips using soluble starch23 Jun 2026US 12,662,717 B2Nanjing University
- Oxide-containing copper fine particles, method for producing same, and method for producing sintered compact using oxide-containing copper fine particles12 May 2026US 12,623,281 B2National University Corporation Hokkaido University
- Copper oxide with hollow porous structure, and preparation method therefor and use thereof17 Mar 2026US 12,577,123 B2Yanshan University
- Method of preparing nano-porous powder material10 Feb 2026US 12,544,829 B2Shanghai Futing Technology Co., Ltd
- Method of converting copper cyanide to copper oxide and system thereof11 Jun 2026US 2026/0159409 A1Cyanco Corporation
- Method for reproducing valuable metal11 Jun 2026US 2026/0159410 A1Prime Planet Energy & Solutions, Inc.
- Method of preparing mesoporous cuo materials5 Mar 2026US 2026/0062307 A1An-Najah National University
- Method and apparatus for extracting copper/tin source material from oxalate of copper and/or tin29 Jan 2026US 2026/0028239 A1
- Copper Oxide-Containing Powder, Conductive Paste, and Method for Producing Copper Oxide-Containing Powder16 Oct 2025US 2025/0320130 A1JX Metals Corporation
Most cited
By later US patents
- Method and apparatus for the production of metal oxide powder91US 5,207,973 AMartin Marietta Energy Systems, Inc. · 1993
- Process for making surfactant capped nanocrystals88US 6,440,213 B1The Regents of the University of California · 2002
- Supercritical fluid reverse micelle separation70US 5,266,205 ABattelle Memorial Institute · 1993
- Nanostructured oxides and hydroxides and methods of synthesis therefor70US 6,162,530 AUniversity of Connecticut · 2000
- Supercritical fluid reverse micelle systems68US 5,158,704 ABattelle Memorial Insitute · 1992