G03G 5/1473
Polyvinylalcohol, polyallylalcohol
Official title: {Polyvinylalcohol, polyallylalcohol; Derivatives thereof, e.g. polyvinylesters, polyvinylethers, polyvinylamines}
G03G5/1473 (Polyvinylalcohol, polyallylalcohol) appears on 107 US grants and 122 published applications in this corpus.
Search patents in G03G- Granted patents
- 107
- Published applications
- 122
- Assignees
- 28
- Inventors
- 262
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 4 |
| 2004 | 2 | 2 |
| 2005 | 1 | 6 |
| 2006 | 1 | 12 |
| 2007 | 4 | 5 |
| 2008 | 5 | 13 |
| 2009 | 9 | 7 |
| 2010 | 8 | 5 |
| 2011 | 6 | 9 |
| 2012 | 4 | 3 |
| 2013 | 5 | 2 |
| 2014 | 9 | 3 |
| 2015 | 2 | 3 |
| 2016 | 5 | 2 |
| 2017 | 3 | 4 |
| 2018 | 1 | 1 |
| 2019 | 5 | 17 |
| 2020 | 13 | 5 |
| 2021 | 4 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 10 |
| 2024 | 0 | 3 |
| 2025 | 3 | 1 |
| 2026 | 2 | 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
- Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and method of producing electrophotographic photosensitive member13 Jan 2026US 12,523,943 B2Canon Kabushiki Kaisha
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus, and method of producing electrophotographic photosensitive member2 Dec 2025US 12,487,536 B2Canon Kabushiki Kaisha
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus4 Nov 2025US 12,461,459 B2Canon Kabushiki Kaisha
- Process cartridge and electrophotographic apparatus14 Oct 2025US 12,443,119 B2Canon Kabushiki Kaisha
- Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and method of producing electrophotographic photosensitive member13 Aug 2026US 2026/0235972 A1Canon Kabushiki Kaisha
- Electrophotographic photoreceptor21 May 2026US 2026/0140457 A1KYOCERA Document Solutions Inc.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus27 Mar 2025US 2025/0102932 A1FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, coating liquid for forming electrophotographic photoreceptor protective layer, compound, electrophotographic photoreceptor cartridge, and image formation device24 Oct 2024US 2024/0353769 A1Mitsubishi Chemical Corporation
- Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, and image forming apparatus25 Jan 2024US 2024/0027928 A1Mitsubishi Chemical Corporation
Most cited
By later US patents
- Photoreceptor with improved combination of overcoat layer and charge transport layer45US 6,207,334 B1Xerox Corporation · 2001
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus38US 10,558,132 B2Canon Kabushiki Kaisha · 2020
- Barrier layer for photoconductor elements comprising an organic polymer and silica34US 6,001,522 AImation Corp. · 1999
- Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus31US 10,558,133 B2Canon Kabushiki Kaisha · 2020
- Electrophotographic photosensitive member, method of manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus23US 7,704,657 B2Canon Kabushiki Kaisha · 2010