G03G 5/0624
Containing one hetero ring
Official title: {containing one hetero ring}
G03G5/0624 (Containing one hetero ring) appears on 562 US grants and 265 published applications in this corpus.
Search patents in G03G- Granted patents
- 562
- Published applications
- 265
- Assignees
- 95
- Inventors
- 862
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 6 | 0 |
| 1978 | 13 | 0 |
| 1979 | 10 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 13 | 0 |
| 1983 | 20 | 0 |
| 1984 | 20 | 0 |
| 1985 | 13 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 9 | 0 |
| 1989 | 16 | 0 |
| 1990 | 21 | 0 |
| 1991 | 24 | 0 |
| 1992 | 22 | 0 |
| 1993 | 16 | 0 |
| 1994 | 20 | 0 |
| 1995 | 15 | 0 |
| 1996 | 15 | 0 |
| 1997 | 11 | 0 |
| 1998 | 15 | 0 |
| 1999 | 14 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 1 |
| 2002 | 8 | 6 |
| 2003 | 7 | 13 |
| 2004 | 7 | 17 |
| 2005 | 7 | 38 |
| 2006 | 17 | 33 |
| 2007 | 21 | 11 |
| 2008 | 25 | 19 |
| 2009 | 12 | 23 |
| 2010 | 18 | 1 |
| 2011 | 16 | 14 |
| 2012 | 10 | 12 |
| 2013 | 12 | 5 |
| 2014 | 8 | 6 |
| 2015 | 5 | 10 |
| 2016 | 8 | 2 |
| 2017 | 4 | 9 |
| 2018 | 8 | 13 |
| 2019 | 11 | 11 |
| 2020 | 9 | 4 |
| 2021 | 5 | 5 |
| 2022 | 0 | 5 |
| 2023 | 2 | 1 |
| 2024 | 0 | 3 |
| 2025 | 1 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image forming apparatus15 Sep 2026US 12,736,891 B2KYOCERA Document Solutions Inc.
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus14 Oct 2025US 12,443,118 B2KYOCERA Document Solutions Inc.
- Electrophotographic photosensitive member, process cartridge and electrophotographic image forming apparatus14 Nov 2023US 11,815,849 B2Canon Kabushiki Kaisha
- Electrophotographic photoconductor, method of manufacturing the same, and electrophotographic device21 Feb 2023US 11,586,119 B2Fuji Electric Co., Ltd.
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus8 Jun 2021US 11,029,615 B2Canon Kabushiki Kaisha
- Image forming apparatus11 Dec 2025US 2025/0377605 A1KYOCERA Document Solutions Inc.
- Electrophotographic apparatus31 Jul 2025US 2025/0244687 A1Canon Kabushiki Kaisha
- Electrophotographic photoconductor, electrophotographic photoconductor cartridge, and image formation device30 Jan 2025US 2025/0036035 A1Mitsubishi Chemical Corporation
- Electrophotographic photoreceptor, process cartridge and image-forming apparatus including electrophotographic photoreceptor19 Dec 2024US 2024/0419092 A1Sharp Kabushiki Kaisha
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus13 Jun 2024US 2024/0192613 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Hydrazone containing charge transport element and photoconductive process of using same191US 4,150,987 AInternational Business Machines Corporation · 1979
- Electrophotographic element with carbazole hydrazone or anile charge transport compounds130US 4,297,426 ARicoh Company, Ltd. · 1981
- Electrophotographic plate comprising a conductive substrate and a photosensitive layer containing an organic photoconductor layer composed of a hydrazone compound98US 4,278,747 AMitsubishi Chemical Industries Limited · 1981
- Electrophotographic elements using hydroxy functionalized arylamine compounds86US 4,871,634 AXerox Corporation · 1989
- Electrophotographic photoconductor containing disazo and trisazo pigments82US 5,578,405 ARicoh Company, Ltd. · 1996