G03G 15/556
For toner consumption
Official title: {for toner consumption, e.g. pixel counting, toner coverage detection or toner density measurement}
G03G15/556 (For toner consumption) appears on 1,091 US grants and 1,171 published applications in this corpus.
Search patents in G03G- Granted patents
- 1,091
- Published applications
- 1,171
- Assignees
- 89
- Inventors
- 1,872
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 13 | 0 |
| 1999 | 14 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 5 |
| 2002 | 10 | 14 |
| 2003 | 14 | 14 |
| 2004 | 12 | 29 |
| 2005 | 20 | 45 |
| 2006 | 33 | 44 |
| 2007 | 27 | 28 |
| 2008 | 23 | 43 |
| 2009 | 27 | 26 |
| 2010 | 40 | 27 |
| 2011 | 20 | 44 |
| 2012 | 31 | 57 |
| 2013 | 41 | 39 |
| 2014 | 59 | 37 |
| 2015 | 63 | 70 |
| 2016 | 76 | 61 |
| 2017 | 43 | 57 |
| 2018 | 68 | 80 |
| 2019 | 88 | 79 |
| 2020 | 66 | 57 |
| 2021 | 52 | 75 |
| 2022 | 60 | 54 |
| 2023 | 38 | 34 |
| 2024 | 38 | 59 |
| 2025 | 40 | 58 |
| 2026 | 34 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus having locking device with failure detection15 Sep 2026US 12,736,911 B2Ricoh Company, Ltd.
- Recording material estimation method, information processing apparatus, and consumable8 Sep 2026US 12,730,404 B2Zhuhai Pantum Electronics Co., Ltd.
- Image forming apparatus1 Sep 2026US 12,724,360 B2Ricoh Company, Ltd.
- Image forming device that determines when to fill toner for forming images25 Aug 2026US 12,717,253 B2Sharp Kabushiki Kaisha
- Image forming apparatus25 Aug 2026US 12,717,259 B2Canon Kabushiki Kaisha
- Image forming apparatus1 Oct 2026US 2026/0299485 A1Canon Kabushiki Kaisha
- Substrate unit and image forming apparatus24 Sep 2026US 2026/0288034 A1Canon Kabushiki Kaisha
- Replenishment management system including image forming apparatus and server apparatus24 Sep 2026US 2026/0288041 A1Canon Kabushiki Kaisha
- Image forming apparatus24 Sep 2026US 2026/0288042 A1
- Image forming apparatus configured to perform initialization process for first consumable and second consumable attached to main casing in accordance with received instruction24 Sep 2026US 2026/0288058 A1Brother Kogyo Kabushiki Kaisha
Most cited
By later US patents
- Assembly of a printer and its consumption tank for business machine128US 6,011,937 ASagem SA · 2000
- Apparatus and method for improved life sensing in a replaceable intermediate transfer surface application assembly114US 6,431,703 B1Xerox Corporation · 2002
- Method and apparatus for predicting and displaying toner usage of a printer107US 5,802,420 ALexmark International, Inc. · 1998
- Electrical connector, process cartridge and electrophotographic image forming apparatus91US 6,097,908 ACanon Kabushiki Kaisha · 2000
- Capacity determination for toner or ink cartridge85US 6,456,802 B1Hewlett-Packard Company · 2002