G03G 15/105
Detection or control means for the toner concentration
Official title: {Detection or control means for the toner concentration}
G03G15/105 (Detection or control means for the toner concentration) appears on 205 US grants and 155 published applications in this corpus.
Search patents in G03G- Granted patents
- 205
- Published applications
- 155
- Assignees
- 56
- Inventors
- 403
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 13 | 0 |
| 2000 | 11 | 0 |
| 2001 | 9 | 4 |
| 2002 | 4 | 1 |
| 2003 | 5 | 3 |
| 2004 | 4 | 4 |
| 2005 | 0 | 1 |
| 2006 | 3 | 7 |
| 2007 | 1 | 4 |
| 2008 | 4 | 7 |
| 2009 | 2 | 13 |
| 2010 | 10 | 4 |
| 2011 | 8 | 5 |
| 2012 | 5 | 6 |
| 2013 | 4 | 5 |
| 2014 | 6 | 5 |
| 2015 | 6 | 7 |
| 2016 | 12 | 9 |
| 2017 | 8 | 2 |
| 2018 | 5 | 13 |
| 2019 | 11 | 16 |
| 2020 | 15 | 15 |
| 2021 | 10 | 13 |
| 2022 | 7 | 2 |
| 2023 | 3 | 0 |
| 2024 | 2 | 3 |
| 2025 | 1 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus1 Sep 2026US 12,724,360 B2Ricoh Company, Ltd.
- Image processing apparatus capable of performing printing with decoloring toner, method of controlling image processing apparatus, and storage medium13 Jan 2026US 12,523,957 B2Canon Kabushiki Kaisha
- Image forming apparatus and information processing device14 Jan 2025US 12,197,143 B2Canon Kabushiki Kaisha
- Image forming apparatus26 Nov 2024US 12,153,369 B1Toshiba Tec Kabushiki Kaisha
- Dispersing concentrated printing fluids16 Jan 2024US 11,872,819 B2Hewlett-Packard Development Company, L. P.
- Lep printing device bid assembly constant current mode27 Aug 2026US 2026/0252002 A1Hewlett-Packard Development Company, L. P.
- Medium processing apparatus and image forming system18 Jun 2026US 2026/0169404 A1Ricoh Company, Ltd.
- Printing fluid mixing1 Jan 2026US 2026/0003307 A1Hewlett-Packard Development Company, L. P.
- Image forming apparatus11 Dec 2025US 2025/0377612 A1Ricoh Company, Ltd.
- Printhead removals3 Jul 2025US 2025/0214359 A1Hewlett-Packard Development Company, L. P.
Most cited
By later US patents
- Replaceable part with integral memory for usage, calibration and other data311US 5,835,817 AHewlett-Packard Company · 1998
- Replaceable part with integral memory for usage, calibration and other data276US 5,699,091 AHewlett-Packard Company · 1997
- Electrical and fluidic interface for an ink supply144US 6,203,147 B1Hewlett-Packard Company · 2001
- Method and apparatus for storing information on a replaceable ink container131US 6,065,824 AHewlett-Packard Company · 2000
- Replacement part with integral memory for usage and calibration data113US 5,491,540 AHewlett-Packard Company · 1996