G03G 21/16
Mechanical means for facilitating the maintenance of the apparatus
Official title: Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
G03G21/16 (Mechanical means for facilitating the maintenance of the apparatus) appears on 11,003 US grants and 10,973 published applications in this corpus.
Search patents in G03G- Granted patents
- 11,003
- Published applications
- 10,973
- Assignees
- 364
- Inventors
- 8,593
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 11 | 0 |
| 1984 | 19 | 0 |
| 1985 | 14 | 0 |
| 1986 | 33 | 0 |
| 1987 | 33 | 0 |
| 1988 | 30 | 0 |
| 1989 | 45 | 0 |
| 1990 | 47 | 0 |
| 1991 | 50 | 0 |
| 1992 | 56 | 0 |
| 1993 | 73 | 0 |
| 1994 | 66 | 0 |
| 1995 | 46 | 0 |
| 1996 | 58 | 0 |
| 1997 | 53 | 0 |
| 1998 | 101 | 0 |
| 1999 | 105 | 0 |
| 2000 | 114 | 0 |
| 2001 | 109 | 54 |
| 2002 | 106 | 141 |
| 2003 | 124 | 119 |
| 2004 | 120 | 135 |
| 2005 | 115 | 243 |
| 2006 | 162 | 297 |
| 2007 | 194 | 306 |
| 2008 | 194 | 289 |
| 2009 | 199 | 319 |
| 2010 | 281 | 338 |
| 2011 | 295 | 422 |
| 2012 | 357 | 431 |
| 2013 | 437 | 497 |
| 2014 | 582 | 574 |
| 2015 | 721 | 590 |
| 2016 | 722 | 559 |
| 2017 | 540 | 641 |
| 2018 | 595 | 610 |
| 2019 | 638 | 535 |
| 2020 | 620 | 647 |
| 2021 | 578 | 663 |
| 2022 | 575 | 517 |
| 2023 | 537 | 532 |
| 2024 | 438 | 525 |
| 2025 | 461 | 576 |
| 2026 | 322 | 413 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03G 21/18Using a processing cartridge , whereby the process cartridge comprises at least6,199
- G03G 21/1642For connecting the different parts of the apparatus3,750
- G03G 21/1661Means for handling parts of the apparatus in the apparatus3,552
- G03G 21/1604Arrangement or disposition of the entire apparatus3,513
Recent patents
- Image carrier unit and image forming apparatus6 Oct 2026US 12,754,492 B2FUJIFILM Business Innovation Corp.
- Developing cartridge6 Oct 2026US 12,754,494 B2Brother Kogyo Kabushiki Kaisha
- Intermediate transfer unit and image forming apparatus with replaceable cleaning device6 Oct 2026US 12,754,495 B2Canon Kabushiki Kaisha
- Heater including heat generating pattern and electrode having connector therebetween6 Oct 2026US 12,754,500 B2Hewlett-Packard Development Company, L. P.
- Image forming apparatus6 Oct 2026US 12,754,507 B2Konica Minolta, Inc.
- Toner, developer, toner storage unit, image forming apparatus, and image forming method8 Oct 2026US 2026/0310110 A1
- 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
- Sheet conveyance apparatus and image forming apparatus8 Oct 2026US 2026/0310121 A1Konica Minolta, Inc.
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