G03G 5/0521
Comprising one or more heterocyclic groups
Official title: {comprising one or more heterocyclic groups}
G03G5/0521 (Comprising one or more heterocyclic groups) appears on 142 US grants and 100 published applications in this corpus.
Search patents in G03G- Granted patents
- 142
- Published applications
- 100
- Assignees
- 32
- Inventors
- 334
- Latest grant
- 14 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 2 |
| 2003 | 2 | 7 |
| 2004 | 5 | 7 |
| 2005 | 4 | 6 |
| 2006 | 2 | 7 |
| 2007 | 3 | 0 |
| 2008 | 8 | 10 |
| 2009 | 0 | 24 |
| 2010 | 16 | 9 |
| 2011 | 19 | 4 |
| 2012 | 7 | 2 |
| 2013 | 5 | 4 |
| 2014 | 1 | 2 |
| 2015 | 2 | 5 |
| 2016 | 3 | 1 |
| 2017 | 2 | 2 |
| 2018 | 1 | 2 |
| 2019 | 3 | 2 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Electrophotographic photosensitive member, process cartridge and electrophotographic image forming apparatus14 Nov 2023US 11,815,849 B2Canon Kabushiki Kaisha
- Production method for electrophotographic photosensitive member1 Sep 2020US 10,761,441 B2KYOCERA Document Solutions Inc.
- Electrophotographic member, method for producing electrophotographic member, and electrophotographic image forming apparatus12 May 2020US 10,649,352 B2Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, image forming apparatus, and coating liquid for forming photosensitive layer10 Dec 2019US 10,503,088 B2Mitsubishi Chemical Corporation
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus6 Aug 2019US 10,372,047 B2KYOCERA Document Solutions Inc.
- Electrophotographic photosensitive member, process cartridge and electrophotographic image forming apparatus18 May 2023US 2023/0152719 A1Canon Kabushiki Kaisha
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus31 Mar 2022US 2022/0100110 A1KYOCERA Document Solutions Inc.
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus31 Mar 2022US 2022/0100111 A1KYOCERA Document Solutions Inc.
- Production method for electrophotographic photosensitive member21 Nov 2019US 2019/0354029 A1KYOCERA Document Solutions Inc.
- Electrophotographic photoreceptor, image forming apparatus, and coating liquid for forming photosensitive layer11 Apr 2019US 2019/0107790 A1Mitsubishi Chemical Corporation
Most cited
By later US patents
- Polyarylamine compounds and systems utilizing polyarylamine compounds96US 4,801,517 AXerox Corporation · 1989
- Photoconductive imaging member with hydroxyaromatic antioxidant86US 4,563,408 AXerox Corporation · 1986
- Electrophotographic elements using hydroxy functionalized arylamine compounds86US 4,871,634 AXerox Corporation · 1989
- Electrophotographic photoconductor with water vapor permeability75US 6,030,733 ARicoh Company, Ltd. · 2000
- Electrophotographic photoconductor53US 6,151,468 ARicoh Company, Ltd. · 2000