C04B 2235/3277
Co3o4
Official title: Co3O4
C04B2235/3277 (Co3o4) appears on 189 US grants and 237 published applications in this corpus.
Search patents in C04B- Granted patents
- 189
- Published applications
- 237
- Assignees
- 90
- Inventors
- 552
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 4 |
| 2004 | 6 | 11 |
| 2005 | 5 | 6 |
| 2006 | 4 | 7 |
| 2007 | 4 | 8 |
| 2008 | 4 | 7 |
| 2009 | 5 | 23 |
| 2010 | 12 | 10 |
| 2011 | 11 | 7 |
| 2012 | 6 | 13 |
| 2013 | 11 | 9 |
| 2014 | 11 | 2 |
| 2015 | 4 | 13 |
| 2016 | 4 | 5 |
| 2017 | 12 | 14 |
| 2018 | 7 | 14 |
| 2019 | 13 | 11 |
| 2020 | 11 | 18 |
| 2021 | 9 | 10 |
| 2022 | 15 | 11 |
| 2023 | 10 | 8 |
| 2024 | 2 | 10 |
| 2025 | 10 | 9 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- M-type hexaferrite comprising a low dielectric loss ceramic29 Sep 2026US 12,749,604 B2Rogers Corporation
- Method for manufacturing ceramic article and ceramic article24 Feb 2026US 12,558,810 B2Canon Kabushiki Kaisha
- Ferrite ceramic composition and coil component27 Jan 2026US 12,534,411 B2Murata Manufacturing Co., Ltd.
- Nickel zinc copper ferrite for VUHF antenna application28 Oct 2025US 12,454,467 B2Exxelia
- Ferrite sintered magnet and method for manufacturing ferrite sintered magnet12 Aug 2025US 12,387,875 B2TDK Corporation
- Ferrite composition and magnetic core comprising same17 Sep 2026US 2026/0279633 A1LG Innotek Co., Ltd.
- Ceramic material and manufacturing method thereof2 Jul 2026US 2026/0184640 A1Industrial Technology Research Institute
- Method for preparing magneto-dielectric ferrite materials for vuhf application25 Jun 2026US 2026/0176153 A1Centre National D'Etudes Spatiales
- Solid-state battery4 Jun 2026US 2026/0155456 A1Murata Manufacturing Co., Ltd.
- Zirconia compositional substance and method for producing the same29 Jan 2026US 2026/0028285 A1Tosoh Corporation
Most cited
By later US patents
- Oxide magnetic material, ferrite particle, sintered magnet, bonded magnet, magnetic recording medium and motor50US 6,139,766 ATDK Corporation · 2000
- Dense, layered membranes for hydrogen separation39US 7,001,446 B2Eltron Research, Inc. · 2006
- Hydrogen transport membranes31US 6,899,744 B2Eltron Research, Inc. · 2005
- Multilayer ZnO varistor30US 5,369,390 AIndustrial Technology Research Institute · 1994
- Thermoelectric conversion element and thermoelectric conversion module21US 7,649,139 B2National Institute of Advanced Industrial Science and Technology · 2010