C01G 21/02
Oxides
C01G21/02 (Oxides) appears on 70 US grants and 59 published applications in this corpus.
Search patents in C01G- Granted patents
- 70
- Published applications
- 59
- Assignees
- 65
- Inventors
- 216
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 0 |
| 2006 | 1 | 3 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 1 | 6 |
| 2011 | 1 | 0 |
| 2012 | 3 | 3 |
| 2013 | 2 | 4 |
| 2014 | 2 | 2 |
| 2015 | 4 | 4 |
| 2016 | 2 | 5 |
| 2017 | 1 | 1 |
| 2018 | 2 | 3 |
| 2019 | 1 | 6 |
| 2020 | 2 | 0 |
| 2021 | 4 | 2 |
| 2022 | 1 | 5 |
| 2023 | 1 | 4 |
| 2024 | 2 | 1 |
| 2025 | 2 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for direct oxide production29 Sep 2026US 12,747,511 B2Aqua Metals Inc.
- Lead sulfide nanocrystals, preparation method and uses therof25 Aug 2026US 12,715,780 B2Quantum Science Ltd
- Fabrication of CaB2O4/Co3(BO3)2/PbO2/Co3O4 nanocomposite material using Pechini sol-gel method28 Oct 2025US 12,454,461 B1Imam Mohammad Ibn Saud Islamic University
- Nanocrystals22 Jul 2025US 12,365,599 B2Quantum Science Ltd
- Ball mill cooling system and method8 Oct 2024US 12,109,570 B2Clarios Germany GmbH & Co. KG
- Lead oxides, compositions comprising lead oxides and methods of making lead oxides26 Feb 2026US 2026/0055004 A1
- Oxide ferroelectric materials15 Jan 2026US 2026/0015251 A1Samsung Electronics Co., Ltd.
- Nanocrystals12 Jun 2025US 2025/0187939 A1Quantum Science Ltd
- Systems And Methods For Direct Oxide Production6 Mar 2025US 2025/0075357 A1Aqua Metals Inc.
- Ball mill cooling system and method23 Jan 2025US 2025/0025884 A1Clarios Germany GmbH & Co. KG
Most cited
By later US patents
- Semiconducting oxide nanostructures61US 6,586,095 B2Georgia Tech Research Corporation · 2003
- Process for recovering lead oxides from exhausted batteries33US 7,507,496 B1Kinsbursky Brothers Inc · 2009
- Process for fabricating a battery32US 5,273,554 AAT&T Bell Laboratories · 1993
- Recovery of high purity lead oxide from lead acid battery paste26US 8,323,595 B1Toxco, Inc. · 2012
- Double precipitation reaction for the formation of high purity basic lead carbonate and high purity normal lead carbonate23US 4,336,236 ANL Industries, Inc. · 1982