G03G 5/0571
Polyamides
Official title: {Polyamides; Polyimides}
G03G5/0571 (Polyamides) appears on 68 US grants and 58 published applications in this corpus.
Search patents in G03G- Granted patents
- 68
- Published applications
- 58
- Assignees
- 24
- Inventors
- 159
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 5 |
| 2005 | 1 | 1 |
| 2006 | 4 | 10 |
| 2007 | 2 | 2 |
| 2008 | 4 | 7 |
| 2009 | 3 | 5 |
| 2010 | 6 | 4 |
| 2011 | 7 | 3 |
| 2012 | 4 | 6 |
| 2013 | 6 | 2 |
| 2014 | 3 | 2 |
| 2015 | 0 | 1 |
| 2016 | 3 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 1 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus10 Jun 2025US 12,326,688 B2Canon Kabushiki Kaisha
- Positive charging electrophotographic photoreceptor, electrophotographic cartridge and image forming apparatus29 Mar 2022US 11,287,756 B2Mitsubishi Chemical Corporation
- Electrophotographic member, process cartridge, and electrophotographic apparatus7 Sep 2021US 11,112,718 B2Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, process cartridge, and electrophotographic apparatus10 Aug 2021US 11,086,241 B2Canon Kabushiki Kaisha
- Polyimide seamless belt for image forming apparatus17 May 2016US 9,342,007 B2Ricoh Company, Ltd.
- Charging roller, process cartridge, image forming apparatus, and image forming method8 Jan 2026US 2026/0010089 A1KYOCERA Document Solutions Inc.
- Charging roller, process cartridge, image forming apparatus, and image forming method8 Jan 2026US 2026/0010091 A1KYOCERA Document Solutions Inc.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus27 Mar 2025US 2025/0102931 A1FUJIFILM Business Innovation Corp.
- Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus23 Feb 2023US 2023/0059773 A1Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, process cartridge, and electrophotographic apparatus20 Aug 2020US 2020/0264525 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Cyclic bis-dicarboximide electron transport compounds for electrophotography47US 5,468,583 AEastman Kodak Company · 1995
- Photoreceptor with improved combination of overcoat layer and charge transport layer45US 6,207,334 B1Xerox Corporation · 2001
- Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus44US 7,001,699 B2Canon Kabushiki Kaisha · 2006
- Overcoated electrophotographic imaging member with resilient charge transport layer40US 5,681,679 AXerox Corporation · 1997
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus37US 8,465,889 B2Canon Kabushiki Kaisha · 2013