G03G 21/1867
For electrically connecting the process cartridge to the apparatus, electrical connectors, power
Official title: {for electrically connecting the process cartridge to the apparatus, electrical connectors, power supply}
G03G21/1867 (For electrically connecting the process cartridge to the apparatus, electrical connectors, power) appears on 665 US grants and 637 published applications in this corpus.
Search patents in G03G- Granted patents
- 665
- Published applications
- 637
- Assignees
- 55
- Inventors
- 631
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 6 | 0 |
| 2001 | 10 | 2 |
| 2002 | 10 | 7 |
| 2003 | 2 | 8 |
| 2004 | 6 | 7 |
| 2005 | 10 | 15 |
| 2006 | 16 | 22 |
| 2007 | 18 | 21 |
| 2008 | 11 | 17 |
| 2009 | 10 | 10 |
| 2010 | 18 | 14 |
| 2011 | 17 | 24 |
| 2012 | 20 | 19 |
| 2013 | 18 | 33 |
| 2014 | 38 | 31 |
| 2015 | 40 | 25 |
| 2016 | 43 | 35 |
| 2017 | 36 | 36 |
| 2018 | 32 | 31 |
| 2019 | 40 | 34 |
| 2020 | 37 | 40 |
| 2021 | 33 | 39 |
| 2022 | 34 | 28 |
| 2023 | 30 | 33 |
| 2024 | 30 | 40 |
| 2025 | 36 | 41 |
| 2026 | 22 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Developing cartridge6 Oct 2026US 12,754,494 B2Brother Kogyo Kabushiki Kaisha
- Cartridge, toner cartridge, and image forming apparatus29 Sep 2026US 12,748,375 B2Canon Kabushiki Kaisha
- Electrical component box and image forming apparatus8 Sep 2026US 12,730,406 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
- Image forming apparatus and cartridge1 Oct 2026US 2026/0299510 A1Canon Kabushiki Kaisha
- Developing cartridge including developing roller and coupling17 Sep 2026US 2026/0277153 A1Brother Kogyo Kabushiki Kaisha
- Image forming apparatus10 Sep 2026US 2026/0267260 A1Canon Kabushiki Kaisha
- Image forming apparatus10 Sep 2026US 2026/0267282 A1Canon Kabushiki Kaisha
- Process cartridge3 Sep 2026US 2026/0259524 A1Zhuhai Dinghui Technology Co., Ltd.
Most cited
By later US patents
- Process cartridge, electrophotographic image forming apparatus and fixing method of electrical contact part229US 6,934,485 B2Canon Kabushiki Kaisha · 2005
- Process cartridge having electrical contact connectable to electrical contact in electrophotographic image forming apparatus201US 7,136,604 B2Canon Kabushiki Kaisha · 2006
- Electrode member, developing apparatus, process cartridge and image forming apparatus161US 5,768,658 ACanon Kabushiki Kaisha · 1998
- Process cartridge, electrophotographic image forming apparatus, and electrical connection therebetween161US 5,950,047 ACanon Kabushiki Kaisha · 1999
- Process cartridge, electric contact and electrophotographic image forming apparatus160US 6,898,391 B2Canon Kabushiki Kaisha · 2005