G03G 5/0683
Containing polymethine or anthraquinone groups
Official title: {containing polymethine or anthraquinone groups}
G03G5/0683 (Containing polymethine or anthraquinone groups) appears on 120 US grants and 23 published applications in this corpus.
Search patents in G03G- Granted patents
- 120
- Published applications
- 23
- Assignees
- 23
- Inventors
- 156
- Latest grant
- 19 Aug 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 8 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 9 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 2 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 4 |
| 2010 | 2 | 3 |
| 2011 | 1 | 2 |
| 2012 | 4 | 1 |
| 2013 | 3 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Electrophotographic photosensitive body19 Aug 2014US 8,808,951 B2Hodogaya Chemical Co., Ltd.
- Azo compound and method of preparing the azo compound24 Sep 2013US 8,541,557 B2Ricoh Company, Ltd.
- Hydroxygallium phthalocyanine composite pigment, electrophotographic photoconductor containing the same, and image forming device and process cartridge for image forming device using the same10 Sep 2013US 8,530,124 B2Ricoh Company, Ltd.
- Image bearing member, image forming apparatus, and process cartridge16 Jul 2013US 8,486,595 B2Ricoh Company, Ltd.
- AZO pigment, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus13 Nov 2012US 8,309,696 B2Canon Kabushiki Kaisha
- Method of Producing Photoconductors Having Titanyl Phthalocyanine and Bisazo Pigments in Dual Charge Generation Layers2 Jul 2015US 2015/0185627 A1Lexmark International, Inc.
- Photoconductors Having Titanyl Phthalocyanine and Bisazo Pigments in Dual Charge Generation Layers2 Jul 2015US 2015/0185629 A1Lexmark International, Inc.
- Electrophotographic photosensitive body10 Oct 2013US 2013/0266343 A1Hodogaya Chemical Co., Ltd.
- Azo compound and method of preparing the azo compound4 Oct 2012US 2012/0253025 A1Ricoh Company, Ltd.
- Hydroxygallium phthalocyanine composite pigment, electrophotographic photoconductor containing the same, and image forming device and process cartridge for image forming device using the same30 Jun 2011US 2011/0159418 A1Ricoh Company, Ltd.
Most cited
By later US patents
- Electrophotographic element with carbazole-phenyhydrazone charge transport layer76US 4,256,821 ARicoh Company, Ltd. · 1981
- Electrophotographic photosensitive member with hydrazone compound52US 4,399,207 ACanon Kabushiki Kaisha · 1983
- Electrophotographic photoconductor, image forming apparatus, and process cartridge using the photoconductor48US 6,492,079 B2Ricoh Company, Ltd. · 2002
- Electrophotographic photoconductor and electrophotographic image forming apparatus using the photoconductor45US 6,136,483 ARicoh Company, Ltd. · 2000
- Electrophotographic photosensitive azo pigment containing members30US 4,390,611 A1983