G03G 9/1131
Coating methods
Official title: {Coating methods; Structure of coatings}
G03G9/1131 (Coating methods) appears on 300 US grants and 282 published applications in this corpus.
Search patents in G03G- Granted patents
- 300
- Published applications
- 282
- Assignees
- 54
- Inventors
- 592
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 12 | 0 |
| 1994 | 8 | 0 |
| 1995 | 2 | 0 |
| 1996 | 10 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 1 |
| 2002 | 7 | 4 |
| 2003 | 8 | 9 |
| 2004 | 2 | 7 |
| 2005 | 0 | 6 |
| 2006 | 2 | 9 |
| 2007 | 7 | 13 |
| 2008 | 7 | 16 |
| 2009 | 6 | 10 |
| 2010 | 6 | 22 |
| 2011 | 11 | 14 |
| 2012 | 16 | 11 |
| 2013 | 14 | 12 |
| 2014 | 21 | 12 |
| 2015 | 6 | 8 |
| 2016 | 14 | 10 |
| 2017 | 15 | 19 |
| 2018 | 13 | 11 |
| 2019 | 10 | 13 |
| 2020 | 11 | 9 |
| 2021 | 9 | 9 |
| 2022 | 1 | 20 |
| 2023 | 8 | 8 |
| 2024 | 10 | 13 |
| 2025 | 9 | 7 |
| 2026 | 0 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Carrier for forming electrophotographic image, developer for forming electrophotographic image, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge7 Oct 2025US 12,436,479 B2Ricoh Company, Ltd.
- Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer7 Oct 2025US 12,436,480 B2Powdertech Co., Ltd.
- Magnetic carrier and two-component developer30 Sep 2025US 12,429,793 B2Canon Kabushiki Kaisha
- Carrier for forming electrophotographic image, developer, image forming method, image forming apparatus, and process cartridge5 Aug 2025US 12,379,678 B2Ricoh Company, Ltd.
- Toner, method for producing toner, two-component developer containing toner, and image forming device using toner24 Sep 2026US 2026/0288029 A1Sharp Kabushiki Kaisha
- Two-component developer28 May 2026US 2026/0147287 A1
- Magnetic carrier and two component developer containing the same, and method for producing magnetic carrier14 May 2026US 2026/0133513 A1KYOCERA Document Solutions Inc.
- Positively chargeable toner and two-component developer including positively chargeable toner12 Mar 2026US 2026/0072368 A1KYOCERA Document Solutions Inc.
- Magnetic carrier12 Mar 2026US 2026/0072370 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
- Aggregation processes136US 5,744,520 AXerox Corporation · 1998
- Electrophotographic carrier powder coated by resin dry-mixing process105US 4,233,387 AXerox Corporation · 1980
- Fibrillated carrier compositions and processes for making and using101US 5,683,844 AXerox Corporation · 1997