G03G 21/1803
Arrangements or disposition of the complete process cartridge or parts thereof
Official title: {Arrangements or disposition of the complete process cartridge or parts thereof}
G03G21/1803 (Arrangements or disposition of the complete process cartridge or parts thereof) appears on 3,182 US grants and 3,049 published applications in this corpus.
Search patents in G03G- Granted patents
- 3,182
- Published applications
- 3,049
- Assignees
- 145
- Inventors
- 2,924
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 10 | 0 |
| 1989 | 15 | 0 |
| 1990 | 14 | 0 |
| 1991 | 19 | 0 |
| 1992 | 27 | 0 |
| 1993 | 31 | 0 |
| 1994 | 24 | 0 |
| 1995 | 26 | 0 |
| 1996 | 27 | 0 |
| 1997 | 30 | 0 |
| 1998 | 48 | 0 |
| 1999 | 32 | 0 |
| 2000 | 54 | 0 |
| 2001 | 41 | 23 |
| 2002 | 40 | 55 |
| 2003 | 56 | 41 |
| 2004 | 46 | 46 |
| 2005 | 35 | 77 |
| 2006 | 52 | 67 |
| 2007 | 53 | 67 |
| 2008 | 41 | 70 |
| 2009 | 51 | 69 |
| 2010 | 70 | 64 |
| 2011 | 55 | 87 |
| 2012 | 67 | 84 |
| 2013 | 103 | 117 |
| 2014 | 122 | 135 |
| 2015 | 165 | 127 |
| 2016 | 176 | 124 |
| 2017 | 102 | 159 |
| 2018 | 154 | 157 |
| 2019 | 183 | 160 |
| 2020 | 187 | 209 |
| 2021 | 191 | 229 |
| 2022 | 220 | 189 |
| 2023 | 185 | 188 |
| 2024 | 143 | 176 |
| 2025 | 147 | 196 |
| 2026 | 116 | 133 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03G 21/1817Having a submodular arrangement1,498
- G03G 21/1814Details of parts of process cartridge1,266
- G03G 21/1828Prevention of damage or soiling466
- G03G 21/181Manufacturing or assembling, recycling, reuse, transportation, packaging or storage450
- G03G 21/1807Colour80
- G03G 21/1835The process cartridge not comprising a photosensitive member21
Recent patents
- Developing cartridge6 Oct 2026US 12,754,494 B2Brother Kogyo Kabushiki Kaisha
- Cartridge and image forming apparatus6 Oct 2026US 12,754,510 B2Canon Kabushiki Kaisha
- Cartridge, toner cartridge, and image forming apparatus29 Sep 2026US 12,748,375 B2Canon Kabushiki Kaisha
- Electrophotographic conductive roller, process cartridge, and electrophotographic image forming apparatus15 Sep 2026US 12,736,893 B2Canon Kabushiki Kaisha
- Image forming apparatus with a reflector disposed on a cleaning blade support15 Sep 2026US 12,736,909 B2Ricoh Company, Ltd.
- Toner, developer, toner storage unit, image forming apparatus, and image forming method8 Oct 2026US 2026/0310110 A1
- Electrostatic charge image developing toner set, electrostatic charge image developer set, toner cartridge set, process cartridge, and image forming apparatus1 Oct 2026US 2026/0299451 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus1 Oct 2026US 2026/0299508 A1FUJIFILM Business Innovation Corp.
- Electrophotographic image forming apparatus, cartridge and drum unit1 Oct 2026US 2026/0299509 A1Canon Kabushiki Kaisha
- Image forming apparatus and cartridge1 Oct 2026US 2026/0299510 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Process cartridge and image forming apparatus280US 5,585,889 ACanon Kabushiki Kaisha · 1996
- Process cartridge, image forming apparatus and separating mechanism for separating developing member from photosensitive drum217US 6,681,088 B2Canon Kabushiki Kaisha · 2004
- System for forming color images217US 6,708,011 B2Seiko Epson Corporation · 2004
- Process cartridge having first and second rotatably coupled frames and electrophotographic image forming apparatus mounting such process cartridge204US 7,158,736 B2Canon Kabushiki Kaisha · 2007
- Process cartridge and electrophotographic image forming apparatus203US 5,966,567 ACanon Kabushiki Kaisha · 1999