C04B 35/2625
Containing magnesium
Official title: {containing magnesium}
C04B35/2625 (Containing magnesium) appears on 35 US grants and 31 published applications in this corpus.
Search patents in C04B- Granted patents
- 35
- Published applications
- 31
- Assignees
- 28
- Inventors
- 100
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 4 | 4 |
| 2004 | 2 | 1 |
| 2005 | 1 | 4 |
| 2006 | 0 | 0 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 3 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 3 |
| 2023 | 0 | 4 |
| 2024 | 0 | 0 |
| 2025 | 4 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Ferrite particle, carrier core material for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer28 Oct 2025US 12,455,516 B2Powdertech Co., Ltd.
- Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer7 Oct 2025US 12,436,480 B2Powdertech Co., Ltd.
- Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer12 Aug 2025US 12,386,281 B2Powdertech Co., Ltd.
- Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer18 Mar 2025US 12,253,825 B2Powdertech Co., Ltd.
- Ruthenium doped Z-type hexaferrite18 Oct 2022US 11,476,021 B2Rogers Corporation
- Novel multifferoic r-type hexaferrite, a composite and an article comprising the r-type hexaferrite, and a method of making the same2 Nov 2023US 2023/0352222 A1Rogers Corporation
- Ferrite particle, carrier core material for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer21 Sep 2023US 2023/0296999 A1Powdertech Co., Ltd.
- Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer18 May 2023US 2023/0152726 A1Powdertech Co., Ltd.
- Ceramic composition and wire-wound coil component23 Mar 2023US 2023/0090818 A1Murata Manufacturing Co., Ltd.
- Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer19 May 2022US 2022/0155701 A1Powdertech Co., Ltd.
Most cited
By later US patents
- Magnetic ferrite composition and process of production thereof30US 6,790,379 B2TDK Corporation · 2004
- Cathodic protection22US 4,169,028 ATDK Electronics Co., Ltd. · 1979
- Carbonate/hydroxide coprecipitation process16US 4,372,865 ASpang Industries, Inc. · 1983
- Powder for magnetic ferrite, magnetic ferrite, multilayer ferrite components and production method thereof15US 6,658,724 B2TDK Corporation · 2003
- Low temperature sinterable oxide magnetic material14US 4,540,500 AFuji Electrochemical Co., Ltd. · 1985