G03G 2221/1823
Cartridges having electronically readable memory
G03G2221/1823 (Cartridges having electronically readable memory) appears on 637 US grants and 623 published applications in this corpus.
Search patents in G03G- Granted patents
- 637
- Published applications
- 623
- Assignees
- 64
- Inventors
- 797
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 10 | 0 |
| 2000 | 11 | 0 |
| 2001 | 15 | 8 |
| 2002 | 21 | 45 |
| 2003 | 39 | 29 |
| 2004 | 29 | 59 |
| 2005 | 36 | 74 |
| 2006 | 49 | 50 |
| 2007 | 61 | 45 |
| 2008 | 49 | 55 |
| 2009 | 21 | 25 |
| 2010 | 39 | 27 |
| 2011 | 32 | 18 |
| 2012 | 19 | 13 |
| 2013 | 14 | 6 |
| 2014 | 11 | 10 |
| 2015 | 11 | 12 |
| 2016 | 11 | 9 |
| 2017 | 19 | 11 |
| 2018 | 9 | 11 |
| 2019 | 14 | 9 |
| 2020 | 10 | 12 |
| 2021 | 9 | 16 |
| 2022 | 11 | 13 |
| 2023 | 14 | 14 |
| 2024 | 12 | 19 |
| 2025 | 18 | 17 |
| 2026 | 13 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cartridge, toner cartridge, and image forming apparatus29 Sep 2026US 12,748,375 B2Canon Kabushiki Kaisha
- Image forming apparatus1 Sep 2026US 12,724,360 B2Ricoh Company, Ltd.
- Drum cartridge including storage medium having electrical contact surface positioned at outer surface of drum frame25 Aug 2026US 12,717,273 B2Brother Kogyo Kabushiki Kaisha
- Cartridge including a memory mounting portion and image forming apparatus including the cartridge18 Aug 2026US 12,710,722 B2Canon Kabushiki Kaisha
- Process cartridge chip and process cartridge4 Aug 2026US 12,699,352 B2Zhuhai Pantum Electronics Co., Ltd.
- Image forming apparatus configured to perform initialization process to initialize lifetime information in consumable memory of consumable when receiving instruction10 Sep 2026US 2026/0267269 A1Brother Kogyo Kabushiki Kaisha
- System including image forming apparatus and server apparatus10 Sep 2026US 2026/0267579 A1Canon Kabushiki Kaisha
- Image forming apparatus including controller capable of determining whether developing cartridge, drum cartridge and belt unit are reached their lifetimes6 Aug 2026US 2026/0227734 A1Brother Kogyo Kabushiki Kaisha
- Image forming apparatus with multiple toner containers for each same color fitted therein, and non-transitory computer-readable recording medium with operation control program stored therein2 Jul 2026US 2026/0186441 A1KYOCERA Document Solutions Inc.
- Cartridge unit and image forming apparatus25 Jun 2026US 2026/0177974 A1Canon 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
- Method of calibrating a spatial light modulator printing system280US 5,842,088 ATexas Instruments Incorporated · 1998
- Replaceable part with integral memory for usage, calibration and other data276US 5,699,091 AHewlett-Packard Company · 1997
- Process cartridge, electrophotographic image forming apparatus and connection method of connecting contacts214US 5,926,666 ACanon Kabushiki Kaisha · 1999