G03G 2221/183
Process cartridge
G03G2221/183 (Process cartridge) appears on 2,053 US grants and 1,537 published applications in this corpus.
Search patents in G03G- Granted patents
- 2,053
- Published applications
- 1,537
- Assignees
- 120
- Inventors
- 2,265
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 15 | 0 |
| 1987 | 16 | 0 |
| 1988 | 21 | 0 |
| 1989 | 27 | 0 |
| 1990 | 31 | 0 |
| 1991 | 35 | 0 |
| 1992 | 42 | 0 |
| 1993 | 31 | 0 |
| 1994 | 30 | 0 |
| 1995 | 17 | 0 |
| 1996 | 34 | 0 |
| 1997 | 35 | 0 |
| 1998 | 62 | 0 |
| 1999 | 49 | 0 |
| 2000 | 54 | 0 |
| 2001 | 68 | 29 |
| 2002 | 65 | 69 |
| 2003 | 53 | 50 |
| 2004 | 51 | 53 |
| 2005 | 49 | 93 |
| 2006 | 73 | 120 |
| 2007 | 83 | 91 |
| 2008 | 73 | 56 |
| 2009 | 64 | 66 |
| 2010 | 76 | 50 |
| 2011 | 58 | 55 |
| 2012 | 66 | 66 |
| 2013 | 59 | 36 |
| 2014 | 59 | 50 |
| 2015 | 58 | 56 |
| 2016 | 79 | 48 |
| 2017 | 38 | 46 |
| 2018 | 47 | 45 |
| 2019 | 60 | 57 |
| 2020 | 69 | 66 |
| 2021 | 53 | 69 |
| 2022 | 61 | 57 |
| 2023 | 66 | 54 |
| 2024 | 45 | 60 |
| 2025 | 33 | 61 |
| 2026 | 24 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03G 2221/1853Having a submodular arrangementIndexing code922
- G03G 2221/1884Projections on process cartridge for guiding mounting thereof in main machineIndexing code286
- G03G 2221/1846Using a handle for carrying or pulling out of the main machineIndexing code129
- G03G 2221/1892Presence detectionIndexing code119
- G03G 2221/1838Autosetting of process parametersIndexing code80
Recent patents
- Cartridge and image forming apparatus6 Oct 2026US 12,754,510 B2Canon Kabushiki Kaisha
- Developing cartridge for detachable mounting to an imaging device25 Aug 2026US 12,717,274 B2Zhuhai Un-Tern Imaging Products Co., Ltd
- Process cartridge detachably mountable in image forming apparatus4 Aug 2026US 12,699,350 B2Zhuhai Dinghui Technology Co., Ltd.
- Process cartridge chip and process cartridge4 Aug 2026US 12,699,352 B2Zhuhai Pantum Electronics Co., Ltd.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus28 Jul 2026US 12,693,605 B2FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus1 Oct 2026US 2026/0299445 A1KYOCERA Document Solutions Inc.
- Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, and image forming apparatus1 Oct 2026US 2026/0299450 A1FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus24 Sep 2026US 2026/0288023 A1FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus10 Sep 2026US 2026/0267244 A1KYOCERA Document Solutions Inc.
- Electrophotographic photoreceptor, method of producing an electrophotographic photoreceptor, process cartridge, and image forming apparatus10 Sep 2026US 2026/0267246 A1KYOCERA Document Solutions 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