G03G 5/09
Sensitisors or activators
Official title: Sensitisors or activators, e.g. dyestuffs (G03G5/12 takes precedence)
G03G5/09 (Sensitisors or activators) appears on 88 US grants and 24 published applications in this corpus.
Search patents in G03G- Granted patents
- 88
- Published applications
- 24
- Assignees
- 36
- Inventors
- 208
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 7 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 7 |
| 2010 | 2 | 3 |
| 2011 | 5 | 0 |
| 2012 | 3 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 3 |
| 2015 | 3 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus21 Oct 2025US 12,449,740 B2Canon Kabushiki Kaisha
- Electroluminescent cells4 Jul 2023US 11,696,378 B2Hewlett-Packard Development Company, L. P.
- Electrophotographic member, process cartridge and electrophotographic image forming apparatus21 Jan 2020US 10,539,891 B1Canon Kabushiki Kaisha
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus6 Aug 2019US 10,372,047 B2KYOCERA Document Solutions Inc.
- Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus and phthalocyanine crystal22 Dec 2015US 9,217,938 B2Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, method of producing an electrophotographic photoreceptor, process cartridge, and image forming apparatus10 Sep 2026US 2026/0267246 A1KYOCERA Document Solutions Inc.
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus30 Jan 2025US 2025/0036073 A1KYOCERA Document Solutions Inc.
- Electroluminescent Cells20 Apr 2023US 2023/0122096 A1Hewlett-Packard Development Company, L. P.
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus23 Mar 2023US 2023/0093328 A1Canon Kabushiki Kaisha
- Electrophotographic member, process cartridge, and electrophotographic image forming apparatus2 Jan 2020US 2020/0004170 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Electrically-conductive support for electrophotographic light-sensitive medium76US 4,416,963 AFuji Photo Film Co., Ltd. · 1983
- Organophotoreceptors for electrophotography featuring novel charge transport compounds based upon hydroxy-functional compounds65US 6,214,503 B1Imation Corp. · 2001
- Milling a compound useful in imaging elements using polymeric milling media59US 5,478,705 AEastman Kodak Company · 1995
- Charge generating elements having modified spectral sensitivity59US 5,693,442 AEastman Kodak Company · 1997
- Electrophotographic recording material23US 4,026,704 AHoechst Aktiengesellschaft · 1977