G03G 2215/01
Apparatus for electrophotographic processes: for producing multicoloured copies
Official title: for producing multicoloured copies
G03G2215/01 (Apparatus for electrophotographic processes: for producing multicoloured copies) appears on 6,216 US grants and 5,432 published applications in this corpus.
Search patents in G03G- Granted patents
- 6,216
- Published applications
- 5,432
- Assignees
- 209
- Inventors
- 6,628
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 11 | 0 |
| 1989 | 11 | 0 |
| 1990 | 15 | 0 |
| 1991 | 23 | 0 |
| 1992 | 30 | 0 |
| 1993 | 32 | 0 |
| 1994 | 29 | 0 |
| 1995 | 23 | 0 |
| 1996 | 81 | 0 |
| 1997 | 74 | 0 |
| 1998 | 168 | 0 |
| 1999 | 165 | 0 |
| 2000 | 193 | 0 |
| 2001 | 207 | 75 |
| 2002 | 216 | 198 |
| 2003 | 174 | 246 |
| 2004 | 211 | 289 |
| 2005 | 202 | 305 |
| 2006 | 218 | 370 |
| 2007 | 243 | 355 |
| 2008 | 256 | 343 |
| 2009 | 244 | 368 |
| 2010 | 294 | 253 |
| 2011 | 298 | 330 |
| 2012 | 328 | 383 |
| 2013 | 333 | 315 |
| 2014 | 429 | 296 |
| 2015 | 407 | 258 |
| 2016 | 338 | 301 |
| 2017 | 293 | 364 |
| 2018 | 245 | 75 |
| 2019 | 113 | 55 |
| 2020 | 75 | 78 |
| 2021 | 65 | 36 |
| 2022 | 50 | 23 |
| 2023 | 35 | 36 |
| 2024 | 29 | 28 |
| 2025 | 20 | 29 |
| 2026 | 8 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03G 2215/0103Plural electrographic recording membersIndexing code4,139
- G03G 2215/0167Single electrographic recording memberIndexing code1,491
- G03G 2215/0151Characterised by the technical problemIndexing code1,305
- G03G 2215/019Structural features of the multicolour image forming apparatusIndexing code250
Recent patents
- Roller driving apparatus used in image forming apparatus29 Sep 2026US 12,748,363 B2Canon Kabushiki Kaisha
- Image forming apparatus including developing device supporting structure having guide groove29 Sep 2026US 12,748,373 B2Brother Kogyo Kabushiki Kaisha
- Toner set, electrostatic charge image developer set, toner cartridge set, process cartridge, image forming apparatus, and image forming method7 Jul 2026US 12,675,059 B2FUJIFILM Business Innovation Corp.
- Image forming apparatus having moving device to move cartridge to attached and retracted positions26 May 2026US 12,638,791 B2Canon Kabushiki Kaisha
- Image forming apparatus26 May 2026US 12,638,793 B2KYOCERA Document Solutions Inc.
- Image forming apparatus1 Oct 2026US 2026/0299453 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus24 Sep 2026US 2026/0288052 A1Canon Kabushiki Kaisha
- Image forming apparatus3 Sep 2026US 2026/0259520 A1Canon Kabushiki Kaisha
- Image forming apparatus that forms image on sheet using rotary developing scheme27 Aug 2026US 2026/0251999 A1Canon Kabushiki Kaisha
- Image forming apparatus27 Aug 2026US 2026/0252003 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and process cartridge comprising cartridge drum positioning portion or recess242US 6,608,980 B2Canon Kabushiki Kaisha · 2003
- 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
- Space securing member, developing device, charging device and process cartridge201US 6,385,416 B1Canon Kabushiki Kaisha · 2002
- Process cartridge, unit, and electrophotographic image forming apparatus169US 6,912,365 B2Canon Kabushiki Kaisha · 2005