G03G 5/04
Photoconductive layers
Official title: Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
G03G5/04 (Photoconductive layers) appears on 5,548 US grants and 2,784 published applications in this corpus.
Search patents in G03G- Granted patents
- 5,548
- Published applications
- 2,784
- Assignees
- 409
- Inventors
- 4,481
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 96 | 0 |
| 1977 | 90 | 0 |
| 1978 | 69 | 0 |
| 1979 | 39 | 0 |
| 1980 | 53 | 0 |
| 1981 | 88 | 0 |
| 1982 | 83 | 0 |
| 1983 | 99 | 0 |
| 1984 | 121 | 0 |
| 1985 | 127 | 0 |
| 1986 | 138 | 0 |
| 1987 | 137 | 0 |
| 1988 | 118 | 0 |
| 1989 | 176 | 0 |
| 1990 | 172 | 0 |
| 1991 | 169 | 0 |
| 1992 | 186 | 0 |
| 1993 | 161 | 0 |
| 1994 | 163 | 0 |
| 1995 | 149 | 0 |
| 1996 | 165 | 0 |
| 1997 | 120 | 0 |
| 1998 | 163 | 0 |
| 1999 | 129 | 0 |
| 2000 | 140 | 0 |
| 2001 | 139 | 30 |
| 2002 | 93 | 79 |
| 2003 | 79 | 133 |
| 2004 | 79 | 148 |
| 2005 | 79 | 170 |
| 2006 | 116 | 178 |
| 2007 | 99 | 170 |
| 2008 | 120 | 187 |
| 2009 | 133 | 188 |
| 2010 | 148 | 135 |
| 2011 | 141 | 133 |
| 2012 | 131 | 95 |
| 2013 | 133 | 111 |
| 2014 | 127 | 120 |
| 2015 | 109 | 130 |
| 2016 | 111 | 103 |
| 2017 | 103 | 96 |
| 2018 | 80 | 72 |
| 2019 | 89 | 89 |
| 2020 | 79 | 92 |
| 2021 | 65 | 62 |
| 2022 | 36 | 39 |
| 2023 | 27 | 57 |
| 2024 | 18 | 63 |
| 2025 | 31 | 45 |
| 2026 | 32 | 59 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03G 5/06Characterised by the photoconductive material being organic3,351
- G03G 5/05Organic bonding materials2,099
- G03G 5/043Photoconductive layers characterised by having two or more layers or characterised by1,124
- G03G 5/08Characterised by the photoconductive material being inorganic973
- G03G 5/09Sensitisors or activators88
Recent patents
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus29 Sep 2026US 12,748,356 B2FUJIFILM Business Innovation Corp.
- Image forming apparatus15 Sep 2026US 12,736,891 B2KYOCERA Document Solutions Inc.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus1 Sep 2026US 12,724,355 B2FUJIFILM Business Innovation Corp.
- Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus25 Aug 2026US 12,717,251 B2Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, and image forming device4 Aug 2026US 12,699,334 B2Mitsubishi Chemical Corporation
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus1 Oct 2026US 2026/0299445 A1KYOCERA Document Solutions Inc.
- 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.
Most cited
By later US patents
- Implantable device and methods for delivering drugs and other substances to treat sinusitis and other disorders1,387US 7,361,168 B2Acclarent, Inc. · 2008
- Imaging system with a diamine charge transport material in a polycarbonate resin688US 4,265,990 AXerox Corporation · 1981
- Photoconductive imaging members with perylene pigment compositions332US 4,587,189 AXerox Corporation · 1986
- Amorphous semiconductors equivalent to crystalline semiconductors produced by a glow discharge process284US 4,226,898 AEnergy Conversion Devices, Inc. · 1980
- Multi-layer photoreceptor containing siloxane on a metal oxide layer247US 4,464,450 AXerox Corporation · 1984