G03G 5/0675
Azo dyes
Official title: {Azo dyes}
G03G5/0675 (Azo dyes) appears on 433 US grants and 134 published applications in this corpus.
Search patents in G03G- Granted patents
- 433
- Published applications
- 134
- Assignees
- 67
- Inventors
- 607
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 14 | 0 |
| 1982 | 16 | 0 |
| 1983 | 11 | 0 |
| 1984 | 15 | 0 |
| 1985 | 18 | 0 |
| 1986 | 20 | 0 |
| 1987 | 13 | 0 |
| 1988 | 8 | 0 |
| 1989 | 28 | 0 |
| 1990 | 26 | 0 |
| 1991 | 19 | 0 |
| 1992 | 18 | 0 |
| 1993 | 18 | 0 |
| 1994 | 15 | 0 |
| 1995 | 11 | 0 |
| 1996 | 21 | 0 |
| 1997 | 10 | 0 |
| 1998 | 9 | 0 |
| 1999 | 11 | 0 |
| 2000 | 11 | 0 |
| 2001 | 9 | 0 |
| 2002 | 4 | 8 |
| 2003 | 2 | 7 |
| 2004 | 4 | 6 |
| 2005 | 6 | 12 |
| 2006 | 5 | 9 |
| 2007 | 7 | 13 |
| 2008 | 8 | 7 |
| 2009 | 1 | 7 |
| 2010 | 7 | 8 |
| 2011 | 6 | 4 |
| 2012 | 8 | 2 |
| 2013 | 6 | 3 |
| 2014 | 3 | 4 |
| 2015 | 7 | 5 |
| 2016 | 1 | 4 |
| 2017 | 4 | 3 |
| 2018 | 1 | 5 |
| 2019 | 5 | 7 |
| 2020 | 6 | 9 |
| 2021 | 7 | 2 |
| 2022 | 1 | 5 |
| 2023 | 0 | 2 |
| 2024 | 0 | 1 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus14 Oct 2025US 12,443,118 B2KYOCERA Document Solutions Inc.
- Electrophotographic photoreceptor, production method therefor, electrophotographic photoreceptor cartridge, and image forming apparatus18 Mar 2025US 12,253,823 B2Mitsubishi Chemical Corporation
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus8 Feb 2022US 11,243,481 B2KYOCERA Document Solutions Inc.
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus21 Dec 2021US 11,204,561 B2KYOCERA Document Solutions Inc.
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus23 Nov 2021US 11,181,837 B2Canon Kabushiki Kaisha
- Composition for image recording and method of producing the same10 Sep 2026US 2026/0267245 A1Canon Kabushiki Kaisha
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus5 Dec 2024US 2024/0402625 A1KYOCERA Document Solutions Inc.
- Electrophotographic photoreceptor, cartridge using same, and image forming device17 Aug 2023US 2023/0259046 A1Mitsubishi Chemical Corporation
- Electrophotographic Photoreceptor, Electrophotographic Photoreceptor Cartridge, and Image Formation Device2 Mar 2023US 2023/0068130 A1Mitsubishi Chemical Corporation
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus15 Dec 2022US 2022/0397835 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Electrophotographic apparatus with photoreceptor having undercoat layer, containing an electronic transporting pigment and reactive organometallic compound116US 5,815,776 AFuji Xerox Co., Ltd. · 1998
- Electrophotographic photoconductor containing disazo and trisazo pigments82US 5,578,405 ARicoh Company, Ltd. · 1996
- Electrophotographic element with carbazole-phenyhydrazone charge transport layer76US 4,256,821 ARicoh Company, Ltd. · 1981
- Organophotoreceptors for electrophotography featuring novel charge transport compounds73US 6,140,004 AImation Corp. · 2000
- Organophotoreceptors for electrophotography featuring novel charge transport compounds72US 6,066,426 AImation Corp. · 2000