G03G 21/0017
Details relating to the internal structure or chemical composition of the blades
Official title: {Details relating to the internal structure or chemical composition of the blades}
G03G21/0017 (Details relating to the internal structure or chemical composition of the blades) appears on 337 US grants and 336 published applications in this corpus.
Search patents in G03G- Granted patents
- 337
- Published applications
- 336
- Assignees
- 56
- Inventors
- 645
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 8 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 4 |
| 2003 | 6 | 5 |
| 2004 | 1 | 8 |
| 2005 | 2 | 7 |
| 2006 | 6 | 9 |
| 2007 | 6 | 19 |
| 2008 | 7 | 12 |
| 2009 | 9 | 15 |
| 2010 | 14 | 26 |
| 2011 | 14 | 12 |
| 2012 | 10 | 9 |
| 2013 | 13 | 7 |
| 2014 | 13 | 22 |
| 2015 | 24 | 21 |
| 2016 | 24 | 22 |
| 2017 | 12 | 22 |
| 2018 | 22 | 22 |
| 2019 | 19 | 13 |
| 2020 | 16 | 11 |
| 2021 | 13 | 14 |
| 2022 | 9 | 9 |
| 2023 | 6 | 8 |
| 2024 | 12 | 13 |
| 2025 | 8 | 13 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus with a reflector disposed on a cleaning blade support15 Sep 2026US 12,736,909 B2Ricoh Company, Ltd.
- Image forming apparatus and process cartridge including a cleaning blade with a coating layer1 Sep 2026US 12,724,377 B2Ricoh Company, Ltd.
- Cleaning blade and method of producing elastic member of cleaning blade1 Sep 2026US 12,724,378 B2Synztec Co., Ltd.
- Image forming apparatus having a photoreceptor with inorganic surface layer and a cleaning blade25 Aug 2026US 12,717,265 B2FUJIFILM Business Innovation Corp.
- Image forming apparatus16 Jun 2026US 12,656,720 B2FUJIFILM Business Innovation Corp.
- Image forming apparatus and process cartridge27 Aug 2026US 2026/0251990 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus and process cartridge27 Aug 2026US 2026/0252024 A1FUJIFILM Business Innovation Corp.
- Booklet manufacturing apparatus and image forming system20 Aug 2026US 2026/0244152 A1
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus14 May 2026US 2026/0133507 A1FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus14 May 2026US 2026/0133508 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Cleaning blade and apparatus employing the same130US 5,162,858 ACanon Kabushiki Kaisha · 1992
- Image forming apparatus and cleaning method for contact-charging member55US 5,999,773 ARicoh Company, Ltd. · 1999
- Blade for electrophotographic apparatus48US 4,984,326 AMitsubishi Petrochemical Co., Ltd. · 1991
- Electrophotographic member, process cartridge, and electrophotographic apparatus38US 9,964,914 B2Canon Kabushiki Kaisha · 2018
- Electrophotographic member, process cartridge, and electrophotographic apparatus37US 10,018,934 B2Canon Kabushiki Kaisha · 2018