G03G 9/0831
Chemical composition of the magnetic components
Official title: {Chemical composition of the magnetic components}
G03G9/0831 (Chemical composition of the magnetic components) appears on 313 US grants and 231 published applications in this corpus.
Search patents in G03G- Granted patents
- 313
- Published applications
- 231
- Assignees
- 69
- Inventors
- 618
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 12 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 11 | 0 |
| 1995 | 6 | 0 |
| 1996 | 11 | 0 |
| 1997 | 12 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 2 |
| 2002 | 6 | 8 |
| 2003 | 15 | 17 |
| 2004 | 6 | 9 |
| 2005 | 7 | 13 |
| 2006 | 7 | 22 |
| 2007 | 9 | 14 |
| 2008 | 10 | 2 |
| 2009 | 7 | 12 |
| 2010 | 6 | 5 |
| 2011 | 8 | 5 |
| 2012 | 4 | 9 |
| 2013 | 8 | 8 |
| 2014 | 8 | 13 |
| 2015 | 8 | 9 |
| 2016 | 14 | 8 |
| 2017 | 11 | 4 |
| 2018 | 6 | 10 |
| 2019 | 12 | 10 |
| 2020 | 7 | 14 |
| 2021 | 8 | 4 |
| 2022 | 1 | 12 |
| 2023 | 5 | 6 |
| 2024 | 3 | 3 |
| 2025 | 2 | 4 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Toner7 Jul 2026US 12,675,060 B2Canon Kabushiki Kaisha
- Electrostatic charge image developing toner and image forming method12 May 2026US 12,625,441 B2Konica Minolta, Inc.
- Cobalt ferrite particle production method and cobalt ferrite particles produced thereby3 Feb 2026US 12,540,082 B2Nittetsu Mining Co., Ltd.
- Magnetic toner27 Jan 2026US 12,535,748 B2Canon Kabushiki Kaisha
- Toner20 Jan 2026US 12,529,972 B2Canon Kabushiki Kaisha
- Toner27 Aug 2026US 2026/0251991 A1KYOCERA Document Solutions Inc.
- Magnetic one-component toner6 Aug 2026US 2026/0227720 A1KYOCERA Document Solutions Inc.
- Magnetic one-component toner and image forming apparatus using the same14 May 2026US 2026/0133515 A1KYOCERA Document Solutions Inc.
- Electrostatic charge image developing carrier, electrostatic charge image developer, process cartridge, image forming apparatus, and image forming method30 Apr 2026US 2026/0118788 A1FUJIFILM Business Innovation Corp.
- Magnetic one-component toner and image forming apparatus using the same9 Apr 2026US 2026/0099104 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Toner78US 8,084,174 B2Canon Kabushiki Kaisha · 2011
- Ferromagnetic toner containing water-soluble or water-solubilizable resin(s)73US 4,105,572 AE. I. Du Pont de Nemours and Company · 1978
- Powder having multilayered film on its surface and process for preparing the same73US 5,985,466 ANittetsu Mining Co., Ltd. · 1999
- Preparation of colloidal iron dispersions by the polymer-catalyzed decomposition of iron carbonyl and iron organocarbonyl compounds69US 4,252,671 AXerox Corporation · 1981
- Magnetic toner69US 8,426,094 B2Canon Kabushiki Kaisha · 2013