C04B 2235/3274
Ferrites
C04B2235/3274 (Ferrites) appears on 239 US grants and 293 published applications in this corpus.
Search patents in C04B- Granted patents
- 239
- Published applications
- 293
- Assignees
- 156
- Inventors
- 617
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 4 |
| 2003 | 4 | 10 |
| 2004 | 4 | 14 |
| 2005 | 8 | 9 |
| 2006 | 10 | 8 |
| 2007 | 6 | 7 |
| 2008 | 5 | 3 |
| 2009 | 7 | 7 |
| 2010 | 4 | 17 |
| 2011 | 8 | 11 |
| 2012 | 10 | 5 |
| 2013 | 10 | 7 |
| 2014 | 9 | 13 |
| 2015 | 6 | 7 |
| 2016 | 13 | 16 |
| 2017 | 10 | 21 |
| 2018 | 12 | 19 |
| 2019 | 15 | 18 |
| 2020 | 16 | 21 |
| 2021 | 12 | 14 |
| 2022 | 23 | 10 |
| 2023 | 9 | 16 |
| 2024 | 11 | 19 |
| 2025 | 12 | 11 |
| 2026 | 8 | 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
- Magnetic ball11 Aug 2026US 12,703,666 B2Saint-Gobain Centre De Recherches Et D ' Etudes Europeen
- Composite ceramics with low dielectric losses16 Jun 2026US 12,655,065 B2Imam Abdulrahman Bin Faisal University
- MnZn-based ferrite and method for producing same26 May 2026US 12,640,293 B2Tokin Corporation
- MnZn-based ferrite19 May 2026US 12,630,477 B2Tokin Corporation
- Self-assembled soft magnetic ferrite nanocomposite materials and passive components and methods of making same1 Oct 2026US 2026/0296983 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- Ferrite composition and magnetic core comprising same17 Sep 2026US 2026/0279633 A1LG Innotek Co., Ltd.
- Dual phased electromagnetic composite ceramic10 Sep 2026US 2026/0265147 A1Imam Abdulrahman Bin Faisal University
- Nickel-zinc ferrite material, and preparation method therefor and use thereof19 Mar 2026US 2026/0078062 A1Hengdian Group Dmegc Magnetics Co., Ltd
- Method for preparing low-temperature sintered high-dielectric constant gyromagnetic ferrite material26 Feb 2026US 2026/0055032 A1Shenzhen Huayang Technology Development Co., Ltd.
Most cited
By later US patents
- Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements156US 7,635,035 B1US Synthetic Corporation · 2009
- Core-shell ceramic particulate and method of making104US 7,670,679 B2General Electric Company · 2010
- Synthesis of magnetite nanoparticles and the process of forming Fe-based nanomaterials70US 6,962,685 B2International Business Machines Corporation · 2005
- Polycrystalline diamond compact including a pre-sintered polycrystalline diamond table including a nonmetallic catalyst that limits infiltration of a metallic-catalyst infiltrant therein and applications therefor50US 9,103,172 B1US Synthetic Corporation · 2015
- Composite oxygen ion transport element33US 7,229,537 B2BP Corporation North America Inc. · 2007