G03G 2221/00
Processes not provided for by group g03g2215/00
Official title: Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
G03G2221/00 (Processes not provided for by group g03g2215/00) appears on 8,425 US grants and 7,597 published applications in this corpus.
Search patents in G03G- Granted patents
- 8,425
- Published applications
- 7,597
- Assignees
- 339
- Inventors
- 8,109
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 13 | 0 |
| 1979 | 8 | 0 |
| 1980 | 12 | 0 |
| 1981 | 13 | 0 |
| 1982 | 13 | 0 |
| 1983 | 13 | 0 |
| 1984 | 30 | 0 |
| 1985 | 25 | 0 |
| 1986 | 41 | 0 |
| 1987 | 40 | 0 |
| 1988 | 38 | 0 |
| 1989 | 58 | 0 |
| 1990 | 58 | 0 |
| 1991 | 75 | 0 |
| 1992 | 67 | 0 |
| 1993 | 63 | 0 |
| 1994 | 85 | 0 |
| 1995 | 63 | 0 |
| 1996 | 86 | 0 |
| 1997 | 76 | 0 |
| 1998 | 141 | 0 |
| 1999 | 133 | 0 |
| 2000 | 141 | 0 |
| 2001 | 139 | 64 |
| 2002 | 155 | 196 |
| 2003 | 165 | 155 |
| 2004 | 141 | 203 |
| 2005 | 150 | 373 |
| 2006 | 240 | 429 |
| 2007 | 315 | 451 |
| 2008 | 322 | 407 |
| 2009 | 270 | 437 |
| 2010 | 386 | 409 |
| 2011 | 388 | 435 |
| 2012 | 424 | 283 |
| 2013 | 409 | 182 |
| 2014 | 363 | 267 |
| 2015 | 316 | 288 |
| 2016 | 348 | 265 |
| 2017 | 254 | 295 |
| 2018 | 295 | 307 |
| 2019 | 330 | 272 |
| 2020 | 287 | 287 |
| 2021 | 264 | 290 |
| 2022 | 287 | 270 |
| 2023 | 263 | 272 |
| 2024 | 252 | 246 |
| 2025 | 211 | 289 |
| 2026 | 144 | 225 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image carrier unit and image forming apparatus6 Oct 2026US 12,754,492 B2FUJIFILM Business Innovation Corp.
- Intermediate transfer unit and image forming apparatus with replaceable cleaning device6 Oct 2026US 12,754,495 B2Canon Kabushiki Kaisha
- Cartridge and image forming apparatus6 Oct 2026US 12,754,510 B2Canon Kabushiki Kaisha
- Roller driving apparatus used in image forming apparatus29 Sep 2026US 12,748,363 B2Canon Kabushiki Kaisha
- Cartridge, attachment and mounting kit29 Sep 2026US 12,748,372 B2Canon Kabushiki Kaisha
- Image forming apparatus8 Oct 2026US 2026/0310115 A1Canon Kabushiki Kaisha
- Image forming apparatus8 Oct 2026US 2026/0310118 A1Canon Kabushiki Kaisha
- Fixing apparatus and image forming apparatus8 Oct 2026US 2026/0310119 A1Canon Kabushiki Kaisha
- Image forming device including switch switching according to whether fixing device is mounted or removed8 Oct 2026US 2026/0310122 A1Brother Kogyo Kabushiki Kaisha
- Image forming apparatus8 Oct 2026US 2026/0310128 A1Sharp Kabushiki Kaisha
Most cited
By later US patents
- Monitor/warranty system for electrostatographic reproducing machines using replaceable cartridges419US 4,961,088 AXerox Corporation · 1990
- Replaceable part with integral memory for usage, calibration and other data311US 5,835,817 AHewlett-Packard Company · 1998
- Process cartridge, electrophotographic image forming apparatus, driving force transmission part, and electrophotographic photosensitive drum289US 5,903,803 ACanon Kabushiki Kaisha · 1999
- Process cartridge and image forming apparatus280US 5,585,889 ACanon Kabushiki Kaisha · 1996
- Method of calibrating a spatial light modulator printing system280US 5,842,088 ATexas Instruments Incorporated · 1998