G03G 15/0858
The level being measured by mechanical means
Official title: {the level being measured by mechanical means}
G03G15/0858 (The level being measured by mechanical means) appears on 96 US grants and 70 published applications in this corpus.
Search patents in G03G- Granted patents
- 96
- Published applications
- 70
- Assignees
- 32
- Inventors
- 223
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 2 |
| 2002 | 2 | 1 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 2 | 0 |
| 2006 | 1 | 5 |
| 2007 | 0 | 2 |
| 2008 | 3 | 2 |
| 2009 | 2 | 6 |
| 2010 | 3 | 1 |
| 2011 | 1 | 1 |
| 2012 | 3 | 5 |
| 2013 | 3 | 4 |
| 2014 | 2 | 3 |
| 2015 | 7 | 4 |
| 2016 | 4 | 4 |
| 2017 | 3 | 5 |
| 2018 | 3 | 3 |
| 2019 | 9 | 3 |
| 2020 | 4 | 2 |
| 2021 | 5 | 5 |
| 2022 | 1 | 2 |
| 2023 | 3 | 4 |
| 2024 | 3 | 1 |
| 2025 | 1 | 3 |
| 2026 | 2 | 0 |
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 forming device that determines when to fill toner for forming images25 Aug 2026US 12,717,253 B2Sharp Kabushiki Kaisha
- Image forming apparatus and image forming method27 May 2025US 12,313,996 B2Konica Minolta, Inc.
- Powder conveying device and image forming apparatus incorporating same8 Oct 2024US 12,111,600 B2Ricoh Company, Ltd.
- Material sensing using container vibration2 Apr 2024US 11,947,279 B2Lexmark International, Inc.
- Image forming apparatus11 Dec 2025US 2025/0377612 A1Ricoh Company, Ltd.
- Measuring system for measuring the level of toner in a cartridge for laser printer11 Sep 2025US 2025/0284222 A1STMicroelectronics International N. V.
- Image forming device19 Jun 2025US 2025/0199438 A1Sharp Kabushiki Kaisha
- Image forming apparatus and image forming method14 Mar 2024US 2024/0085842 A1Konica Minolta, Inc.
- Powder conveying device and image forming apparatus incorporating same30 Nov 2023US 2023/0384730 A1Ricoh Company, Ltd.
Most cited
By later US patents
- Removable toner cartridge65US 6,246,841 B1Lexmark International, Inc. · 2001
- Measuring toner level in a closed container63US 6,600,882 B1Lexmark International, Inc. · 2003
- Multiple function encoder wheel for cartridges utilized in an electrophotographic output device61US 5,634,169 ALexmark International, Inc. · 1997
- Toner level detection system37US 4,989,754 AXerox Corporation · 1991
- Device for notifying a remaining amount of a developer, a process cartridge, and an electrophotographic image forming apparatus35US 5,923,918 ACanon Kabushiki Kaisha · 1999