G03G 21/186
Axial couplings
Official title: {Axial couplings}
G03G21/186 (Axial couplings) appears on 656 US grants and 644 published applications in this corpus.
Search patents in G03G- Granted patents
- 656
- Published applications
- 644
- Assignees
- 68
- Inventors
- 560
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 2 |
| 2002 | 9 | 9 |
| 2003 | 3 | 2 |
| 2004 | 3 | 5 |
| 2005 | 9 | 6 |
| 2006 | 6 | 8 |
| 2007 | 8 | 7 |
| 2008 | 8 | 16 |
| 2009 | 6 | 20 |
| 2010 | 6 | 8 |
| 2011 | 11 | 20 |
| 2012 | 18 | 33 |
| 2013 | 29 | 30 |
| 2014 | 33 | 26 |
| 2015 | 29 | 24 |
| 2016 | 23 | 23 |
| 2017 | 39 | 58 |
| 2018 | 45 | 37 |
| 2019 | 35 | 40 |
| 2020 | 57 | 68 |
| 2021 | 69 | 50 |
| 2022 | 59 | 26 |
| 2023 | 41 | 45 |
| 2024 | 38 | 32 |
| 2025 | 28 | 33 |
| 2026 | 14 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cartridge and image forming apparatus6 Oct 2026US 12,754,510 B2Canon Kabushiki Kaisha
- Cartridge, attachment and mounting kit29 Sep 2026US 12,748,372 B2Canon Kabushiki Kaisha
- Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit4 Aug 2026US 12,699,351 B2Canon Kabushiki Kaisha
- Power receiving unit and processing cartridge30 Jun 2026US 12,669,774 B2
- Developing cartridge including developing roller and coupling23 Jun 2026US 12,663,753 B2Brother Kogyo Kabushiki Kaisha
- Electrophotographic image forming apparatus, cartridge and drum unit1 Oct 2026US 2026/0299509 A1Canon Kabushiki Kaisha
- Developing cartridge including developing roller and coupling17 Sep 2026US 2026/0277153 A1Brother Kogyo Kabushiki Kaisha
- Process cartridge3 Sep 2026US 2026/0259524 A1Zhuhai Dinghui Technology Co., Ltd.
- Process cartridge and image forming apparatus2 Jul 2026US 2026/0186442 A1Canon Kabushiki Kaisha
- Cartridge, and image forming apparatus2 Jul 2026US 2026/0186443 A1Zhuhai Pantum Electronics Co., Ltd.
Most cited
By later US patents
- Process cartridge, electrophotographic image forming apparatus, driving force transmission part, and electrophotographic photosensitive drum289US 5,903,803 ACanon Kabushiki Kaisha · 1999
- Process cartridge and electrophotographic image forming apparatus255US 5,920,753 ACanon Kabushiki Kaisha · 1999
- Process cartridge, electrophotographic image forming apparatus and fixing method of electrical contact part229US 6,934,485 B2Canon Kabushiki Kaisha · 2005
- Rotary member a process cartridge and an assembling method for rolling members173US 5,463,446 ACanon Kabushiki Kaisha · 1995
- Process cartridge, mountable to an image forming apparatus, having first contact portion to be guided by a guide when mounted and second contact portion to limit cartridge rotation or movement when mounted, and image forming apparatus mounting such a process cartridge165US 6,937,832 B2Canon Kabushiki Kaisha · 2005