G03G 5/0542
Polyvinylalcohol, polyallylalcohol
Official title: {Polyvinylalcohol, polyallylalcohol; Derivatives thereof, e.g. polyvinylesters, polyvinylethers, polyvinylamines}
G03G5/0542 (Polyvinylalcohol, polyallylalcohol) appears on 218 US grants and 200 published applications in this corpus.
Search patents in G03G- Granted patents
- 218
- Published applications
- 200
- Assignees
- 43
- Inventors
- 499
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 11 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 9 | 1 |
| 2002 | 4 | 3 |
| 2003 | 1 | 5 |
| 2004 | 3 | 10 |
| 2005 | 2 | 12 |
| 2006 | 9 | 20 |
| 2007 | 5 | 15 |
| 2008 | 8 | 19 |
| 2009 | 14 | 11 |
| 2010 | 11 | 10 |
| 2011 | 6 | 6 |
| 2012 | 13 | 7 |
| 2013 | 7 | 9 |
| 2014 | 14 | 9 |
| 2015 | 12 | 9 |
| 2016 | 6 | 1 |
| 2017 | 2 | 8 |
| 2018 | 8 | 9 |
| 2019 | 11 | 12 |
| 2020 | 8 | 8 |
| 2021 | 6 | 4 |
| 2022 | 4 | 3 |
| 2023 | 1 | 6 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and method of producing electrophotographic photosensitive member3 Feb 2026US 12,541,157 B2Canon Kabushiki Kaisha
- Process cartridge and electrophotographic apparatus14 Oct 2025US 12,443,119 B2Canon Kabushiki Kaisha
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus1 Aug 2023US 11,714,359 B2FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, method of manufacturing the photoreceptor, and electrophotographic device22 Nov 2022US 11,506,987 B2Fuji Electric Co., Ltd.
- Shaped charge generation layer for a photoconductive drum22 Feb 2022US 11,256,185 B2Lexmark International, Inc.
- Image forming apparatus10 Sep 2026US 2026/0267276 A1FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus14 May 2026US 2026/0133504 A1FUJIFILM Business Innovation Corp.
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus15 May 2025US 2025/0155830 A1Canon Kabushiki Kaisha
- Process cartridge and electrophotographic apparatus19 Oct 2023US 2023/0333494 A1Canon Kabushiki Kaisha
- Process cartridge and electrophotographic apparatus14 Sep 2023US 2023/0288826 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Photoconductive imaging members61US 7,037,631 B2Xerox Corporation · 2006
- Electrophotographic photoconductor60US 5,411,827 ARicoh Company, Ltd. · 1995
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus60US 9,029,054 B2Canon Kabushiki Kaisha · 2015
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus60US 9,063,505 B2Canon Kabushiki Kaisha · 2015
- Developer and image forming method55US 7,855,042 B2Canon Kabushiki Kaisha · 2010