G03G 5/047
Characterised by the charge-generation layers or charge transport layers
Official title: characterised by the charge-generation layers or charge transport layers {(G03G5/0433 and G03G5/0436 take precedence)}
G03G5/047 (Characterised by the charge-generation layers or charge transport layers) appears on 811 US grants and 657 published applications in this corpus.
Search patents in G03G- Granted patents
- 811
- Published applications
- 657
- Assignees
- 94
- Inventors
- 1,218
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 11 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 12 | 0 |
| 1990 | 12 | 0 |
| 1991 | 13 | 0 |
| 1992 | 18 | 0 |
| 1993 | 10 | 0 |
| 1994 | 18 | 0 |
| 1995 | 26 | 0 |
| 1996 | 21 | 0 |
| 1997 | 17 | 0 |
| 1998 | 25 | 0 |
| 1999 | 17 | 0 |
| 2000 | 28 | 0 |
| 2001 | 24 | 5 |
| 2002 | 16 | 13 |
| 2003 | 18 | 31 |
| 2004 | 12 | 25 |
| 2005 | 12 | 26 |
| 2006 | 19 | 37 |
| 2007 | 15 | 35 |
| 2008 | 20 | 43 |
| 2009 | 32 | 56 |
| 2010 | 41 | 30 |
| 2011 | 35 | 19 |
| 2012 | 29 | 12 |
| 2013 | 14 | 25 |
| 2014 | 25 | 30 |
| 2015 | 22 | 20 |
| 2016 | 23 | 27 |
| 2017 | 24 | 29 |
| 2018 | 30 | 26 |
| 2019 | 23 | 15 |
| 2020 | 15 | 34 |
| 2021 | 24 | 20 |
| 2022 | 12 | 15 |
| 2023 | 9 | 26 |
| 2024 | 5 | 26 |
| 2025 | 14 | 8 |
| 2026 | 12 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus1 Sep 2026US 12,724,355 B2FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, and image forming device4 Aug 2026US 12,699,334 B2Mitsubishi Chemical Corporation
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus14 Jul 2026US 12,681,395 B2Canon Kabushiki Kaisha
- Electrophotographic photoconductor, method of manufacturing the same, and electrophotographic apparatus14 Jul 2026US 12,681,397 B2Fuji Electric Co., Ltd.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus9 Jun 2026US 12,650,656 B2FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus24 Sep 2026US 2026/0288023 A1FUJIFILM Business Innovation Corp.
- Image forming apparatus24 Sep 2026US 2026/0288024 A1FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, image forming apparatus, and functional layer17 Sep 2026US 2026/0277126 A1FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus10 Sep 2026US 2026/0267244 A1KYOCERA Document Solutions Inc.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus23 Jul 2026US 2026/0211346 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Photoconductive imaging members with perylene pigment compositions332US 4,587,189 AXerox Corporation · 1986
- Siloxane hole trapping layer for overcoated photoreceptors218US 4,291,110 AXerox Corporation · 1981
- Polyarylamine compounds and systems utilizing polyarylamine compounds129US 4,806,443 AXerox Corporation · 1989
- Electrophotographic process and apparatus119US 4,071,361 ACanon Kabushiki Kaisha · 1978
- Photoconductive imaging members111US 5,756,245 AXerox Corporation · 1998