G03G 21/105
Arrangements for conveying toner waste
Official title: {Arrangements for conveying toner waste}
G03G21/105 (Arrangements for conveying toner waste) appears on 945 US grants and 814 published applications in this corpus.
Search patents in G03G- Granted patents
- 945
- Published applications
- 814
- Assignees
- 74
- Inventors
- 1,383
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 15 | 0 |
| 1994 | 9 | 0 |
| 1995 | 8 | 0 |
| 1996 | 14 | 0 |
| 1997 | 8 | 0 |
| 1998 | 16 | 0 |
| 1999 | 15 | 0 |
| 2000 | 12 | 0 |
| 2001 | 10 | 1 |
| 2002 | 9 | 9 |
| 2003 | 9 | 10 |
| 2004 | 7 | 7 |
| 2005 | 6 | 19 |
| 2006 | 16 | 28 |
| 2007 | 15 | 29 |
| 2008 | 26 | 24 |
| 2009 | 19 | 35 |
| 2010 | 15 | 40 |
| 2011 | 35 | 40 |
| 2012 | 46 | 38 |
| 2013 | 39 | 32 |
| 2014 | 39 | 40 |
| 2015 | 64 | 48 |
| 2016 | 54 | 46 |
| 2017 | 47 | 52 |
| 2018 | 39 | 33 |
| 2019 | 46 | 41 |
| 2020 | 48 | 56 |
| 2021 | 50 | 44 |
| 2022 | 43 | 42 |
| 2023 | 33 | 32 |
| 2024 | 26 | 23 |
| 2025 | 18 | 26 |
| 2026 | 15 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Developing device including spiral blade for conveying developer while rotating and image forming apparatus22 Sep 2026US 12,743,039 B2KYOCERA Document Solutions Inc.
- Conveying screw and image forming apparatus15 Sep 2026US 12,736,910 B2KYOCERA Document Solutions Inc.
- Image forming apparatus1 Sep 2026US 12,724,361 B2KYOCERA Document Solutions Inc.
- Conveying nozzle with pivot joint28 Jul 2026US 12,693,620 B2Hewlett-Packard Development Company, L. P.
- Image forming apparatus28 Jul 2026US 12,693,621 B2Ricoh Company, Ltd.
- Image forming system24 Sep 2026US 2026/0288059 A1FUJIFILM Business Innovation Corp.
- Image forming system24 Sep 2026US 2026/0288061 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus3 Sep 2026US 2026/0259526 A1Canon Kabushiki Kaisha
- Booklet manufacturing apparatus and image forming system20 Aug 2026US 2026/0244152 A1
- Air duct for an electrophotographic image forming device30 Jul 2026US 2026/0219602 A1Lexmark International, Inc.
Most cited
By later US patents
- Cleaning frame, cleaning device, process cartridge and electrophotographic image forming apparatus with segregated waste toner container89US 6,055,406 ACanon Kabushiki Kaisha · 2000
- Image forming apparatus having recycling of residual toner83US 6,112,046 ARicoh Company, Ltd. · 2000
- Image forming apparatus having a toner collecting mechanism for removing foreign particles from the copier environment75US 5,386,274 ARicoh Company, Ltd. · 1995
- Image forming apparatus including a toner recycling mechanism71US 5,987,298 ARicoh Company, Ltd. · 1999
- Image-forming machine59US 5,028,966 AMita Industrial Co., Ltd. · 1991