G03G 21/0035
Using a brush
Official title: {using a brush; Details of cleaning brushes, e.g. fibre density (G03G21/0064 takes precedence; magnetic brushes G03G21/0047)}
G03G21/0035 (Using a brush) appears on 436 US grants and 324 published applications in this corpus.
Search patents in G03G- Granted patents
- 436
- Published applications
- 324
- Assignees
- 74
- Inventors
- 737
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 7 | 0 |
| 1992 | 11 | 0 |
| 1993 | 15 | 0 |
| 1994 | 9 | 0 |
| 1995 | 8 | 0 |
| 1996 | 9 | 0 |
| 1997 | 19 | 0 |
| 1998 | 12 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 3 |
| 2002 | 7 | 4 |
| 2003 | 6 | 14 |
| 2004 | 11 | 14 |
| 2005 | 9 | 19 |
| 2006 | 10 | 18 |
| 2007 | 17 | 18 |
| 2008 | 16 | 20 |
| 2009 | 6 | 16 |
| 2010 | 18 | 21 |
| 2011 | 17 | 14 |
| 2012 | 10 | 10 |
| 2013 | 11 | 9 |
| 2014 | 13 | 14 |
| 2015 | 20 | 16 |
| 2016 | 15 | 10 |
| 2017 | 9 | 9 |
| 2018 | 10 | 5 |
| 2019 | 8 | 7 |
| 2020 | 4 | 6 |
| 2021 | 8 | 6 |
| 2022 | 4 | 11 |
| 2023 | 10 | 21 |
| 2024 | 18 | 19 |
| 2025 | 13 | 12 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Printing equipment for metallic material and printing method using same8 Sep 2026US 12,730,405 B2Posco
- Metal material printing equipment and printing method, and printed metal material obtained therefrom18 Aug 2026US 12,710,719 B2Posco
- Image forming apparatus28 Apr 2026US 12,613,489 B2Canon Kabushiki Kaisha
- Image forming apparatus11 Nov 2025US 12,468,253 B2Canon Kabushiki Kaisha
- Image-forming apparatus having charging potential control during non-image forming operation4 Nov 2025US 12,461,465 B2Canon Kabushiki Kaisha
- Image forming apparatus24 Sep 2026US 2026/0288052 A1Canon Kabushiki Kaisha
- Cleaning device and image forming apparatus13 Aug 2026US 2026/0235979 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus4 Jun 2026US 2026/0153830 A1Canon Kabushiki Kaisha
- Image forming apparatus21 May 2026US 2026/0140473 A1Canon Kabushiki Kaisha
- Process unit and image forming apparatus30 Apr 2026US 2026/0118795 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Electrophotographic process and apparatus119US 4,071,361 ACanon Kabushiki Kaisha · 1978
- Particulate filtering58US 4,188,197 ADennison Manufacturing Company · 1980
- Cylindrical brush48US 4,627,127 AMinnesota Mining and Manufacturing Company · 1986
- Apparatus and method for cleaning residual toner with a scraper blade periodically held in contact with a toner transfer surface46US 7,319,841 B2InfoPrint Solutions Company LLC · 2008
- Cleaning brush for electrostatic copiers, printers and the like44US 4,361,922 ASchlegel Corporation · 1982