C01G 49/02
Oxides
Official title: Oxides; Hydroxides {(C01G49/0018 takes precedence)}
C01G49/02 (Oxides) appears on 1,007 US grants and 992 published applications in this corpus.
Search patents in C01G- Granted patents
- 1,007
- Published applications
- 992
- Assignees
- 697
- Inventors
- 2,771
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 25 | 0 |
| 1978 | 27 | 0 |
| 1979 | 12 | 0 |
| 1980 | 16 | 0 |
| 1981 | 15 | 0 |
| 1982 | 10 | 0 |
| 1983 | 11 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 20 | 0 |
| 1987 | 10 | 0 |
| 1988 | 11 | 0 |
| 1989 | 7 | 0 |
| 1990 | 9 | 0 |
| 1991 | 16 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 15 | 0 |
| 1995 | 9 | 0 |
| 1996 | 11 | 0 |
| 1997 | 12 | 0 |
| 1998 | 11 | 0 |
| 1999 | 15 | 0 |
| 2000 | 18 | 0 |
| 2001 | 18 | 5 |
| 2002 | 14 | 19 |
| 2003 | 12 | 15 |
| 2004 | 14 | 22 |
| 2005 | 6 | 16 |
| 2006 | 12 | 27 |
| 2007 | 12 | 24 |
| 2008 | 5 | 48 |
| 2009 | 12 | 31 |
| 2010 | 22 | 38 |
| 2011 | 23 | 30 |
| 2012 | 23 | 34 |
| 2013 | 21 | 34 |
| 2014 | 27 | 45 |
| 2015 | 31 | 60 |
| 2016 | 40 | 56 |
| 2017 | 41 | 42 |
| 2018 | 38 | 67 |
| 2019 | 37 | 62 |
| 2020 | 46 | 46 |
| 2021 | 48 | 49 |
| 2022 | 44 | 54 |
| 2023 | 39 | 47 |
| 2024 | 42 | 58 |
| 2025 | 33 | 40 |
| 2026 | 20 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sodium ion battery cathode material, and a preparation method and application therefor6 Oct 2026US 12,753,088 B2Hubei Wanrun New Energy Technology Co., Ltd.
- Water treatment and purification method25 Aug 2026US 12,715,781 B2Imam Abdulrahman Bin Faisal University
- Creation of an iron product for wastewater treatment23 Jun 2026US 12,662,402 B2U.S. Peroxide, LLC
- Biofuel derived from glycerol esters and method for obtaining same2 Jun 2026US 12,644,065 B2
- Method for separating iron element in brine and application thereof26 May 2026US 12,637,360 B2BYD Company Limited
- Lime and hydraulic cement manufacture by electrolysis using hyaloclastite or lava, carbon mineralization by hyaloclastite or lava electrolysis and method of making and using same8 Oct 2026US 2026/0308006 A1Greencraft LLC
- Concrete recycling8 Oct 2026US 2026/0308059 A1
- Systems and methods for improved metal recovery by leaching8 Oct 2026US 2026/0308711 A1Freeport Minerals Corporation
- Systems and methods for improved metal recovery by leaching8 Oct 2026US 2026/0308712 A1Freeport Minerals Corporation
- Mixed ferrite nanoparticles and uses thereof27 Aug 2026US 2026/0250149 A1Institut National De La Recherche Scientifique
Most cited
By later US patents
- High power ultrasonic reactor for sonochemical applications392US 7,157,058 B2Nano-Size Ltd. · 2007
- Very high purity fine powders and methods to produce such powders142US 6,569,397 B12003
- High purity fine metal powders and methods to produce such powder117US 6,786,950 B2NanoProducts Corporation · 2004
- Process for making surfactant capped nanocrystals88US 6,440,213 B1The Regents of the University of California · 2002
- Process for producing ultra-fine ceramic particles84US 4,705,762 AToyota Jidosha Kabushiki Kaisha · 1987