G03G 2221/0031
Type of foreign matter
G03G2221/0031 (Type of foreign matter) appears on 67 US grants and 61 published applications in this corpus.
Search patents in G03G- Granted patents
- 67
- Published applications
- 61
- Assignees
- 32
- Inventors
- 184
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 0 | 3 |
| 2003 | 1 | 1 |
| 2004 | 2 | 2 |
| 2005 | 1 | 6 |
| 2006 | 5 | 7 |
| 2007 | 7 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 4 |
| 2010 | 0 | 3 |
| 2011 | 3 | 1 |
| 2012 | 3 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 3 |
| 2015 | 2 | 1 |
| 2016 | 2 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 3 |
| 2019 | 3 | 2 |
| 2020 | 0 | 2 |
| 2021 | 4 | 2 |
| 2022 | 2 | 2 |
| 2023 | 2 | 4 |
| 2024 | 4 | 5 |
| 2025 | 1 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image forming apparatus and paper dust cleaning device14 Jul 2026US 12,681,426 B2KYOCERA Document Solutions Inc.
- Image forming apparatus9 Sep 2025US 12,411,435 B2Canon Kabushiki Kaisha
- Image forming apparatus15 Oct 2024US 12,117,757 B2Canon Kabushiki Kaisha
- Image forming apparatus24 Sep 2024US 12,099,315 B2Canon Kabushiki Kaisha
- Image forming apparatus27 Aug 2024US 12,072,654 B2Canon Kabushiki Kaisha
- Cartridge and image forming apparatus9 Jul 2026US 2026/0194853 A1Canon Kabushiki Kaisha
- Image forming apparatus18 Jun 2026US 2026/0169418 A1KYOCERA Document Solutions Inc.
- Image forming apparatus4 Jun 2026US 2026/0153830 A1Canon Kabushiki Kaisha
- Image forming apparatus and process cartridge9 Oct 2025US 2025/0315004 A1
- Image forming apparatus26 Jun 2025US 2025/0208551 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Image forming apparatus having paper-dust removing devices53US 6,219,505 B1Brother Kogyo Kabushiki Kaisha · 2001
- Cleaning apparatus for a charge retentive surface36US 4,819,026 AXerox Corporation · 1989
- Image forming apparatus with developing and cleaning system23US 5,148,219 AKabushiki Kaisha Toshiba · 1992
- Cleanerless electrographic imaging device23US 5,587,774 AFujitsu Limited · 1996
- Cleanerless image forming apparatus using an electrophotographic process19US 5,701,559 AKabushiki Kaisha TEC · 1997