G03G 9/10
Characterised by carrier particles
Official title: characterised by carrier particles
G03G9/10 (Characterised by carrier particles) appears on 1,278 US grants and 881 published applications in this corpus.
Search patents in G03G- Granted patents
- 1,278
- Published applications
- 881
- Assignees
- 135
- Inventors
- 1,829
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 21 | 0 |
| 1978 | 31 | 0 |
| 1979 | 10 | 0 |
| 1980 | 8 | 0 |
| 1981 | 19 | 0 |
| 1982 | 4 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 17 | 0 |
| 1986 | 14 | 0 |
| 1987 | 6 | 0 |
| 1988 | 9 | 0 |
| 1989 | 24 | 0 |
| 1990 | 28 | 0 |
| 1991 | 17 | 0 |
| 1992 | 24 | 0 |
| 1993 | 35 | 0 |
| 1994 | 32 | 0 |
| 1995 | 27 | 0 |
| 1996 | 54 | 0 |
| 1997 | 39 | 0 |
| 1998 | 33 | 0 |
| 1999 | 37 | 0 |
| 2000 | 57 | 0 |
| 2001 | 33 | 7 |
| 2002 | 27 | 20 |
| 2003 | 26 | 43 |
| 2004 | 22 | 25 |
| 2005 | 12 | 27 |
| 2006 | 14 | 43 |
| 2007 | 21 | 41 |
| 2008 | 21 | 40 |
| 2009 | 24 | 49 |
| 2010 | 24 | 48 |
| 2011 | 31 | 36 |
| 2012 | 33 | 40 |
| 2013 | 44 | 35 |
| 2014 | 54 | 47 |
| 2015 | 36 | 29 |
| 2016 | 33 | 38 |
| 2017 | 42 | 50 |
| 2018 | 36 | 31 |
| 2019 | 33 | 36 |
| 2020 | 28 | 30 |
| 2021 | 33 | 29 |
| 2022 | 8 | 37 |
| 2023 | 15 | 25 |
| 2024 | 16 | 30 |
| 2025 | 20 | 16 |
| 2026 | 15 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Carrier core material and electrophotographic development carrier using same and electrophotographic developer6 Oct 2026US 12,754,491 B2Dowa Electronics Materials Co., Ltd.
- Two-component developer28 Jul 2026US 12,693,607 B2KYOCERA Document Solutions Inc.
- Carrier core material, and electrophotographic development carrier and electrophotographic developer using same28 Jul 2026US 12,693,608 B2Dowa Electronics Materials Co., Ltd.
- Two-component developer28 Jul 2026US 12,693,609 B2KYOCERA Document Solutions Inc.
- Toner, toner production method, and two-component developer21 Jul 2026US 12,687,796 B2Canon Kabushiki Kaisha
- Positively chargeable toner and two-component developer containing positively chargeable toner8 Oct 2026US 2026/0310111 A1KYOCERA Document Solutions Inc.
- Positively chargeable toner and two-component developer containing positively chargeable toner8 Oct 2026US 2026/0310112 A1KYOCERA Document Solutions Inc.
- Positively chargeable toner and two-component developer containing positively chargeable toner8 Oct 2026US 2026/0310113 A1KYOCERA Document Solutions Inc.
- Toner, toner production method, and two-component developer8 Oct 2026US 2026/0310114 A1Canon Kabushiki Kaisha
- Toner, developing agent, toner accommodating unit, image forming apparatus, and image forming method24 Sep 2026US 2026/0288025 A1
Most cited
By later US patents
- Polymer coated carrier particles for electrophotographic developers341US 4,937,166 AXerox Corporation · 1990
- Electrophotographic carrier particles coated with polymer mixture317US 4,935,326 AXerox Corporation · 1990
- Three component developer composition154US 3,983,045 AXerox Corporation · 1976
- Polymeric powders having a predetermined and controlled size and size distribution141US 4,833,060 AEastman Kodak Company · 1989
- Two-component, dry electrographic developer compositions containing hard magnetic carrier particles and method for using the same138US 4,546,060 AEastman Kodak Company · 1985