G03G 5/0616
Hydrazines
Official title: {Hydrazines; Hydrazones}
G03G5/0616 (Hydrazines) appears on 264 US grants and 169 published applications in this corpus.
Search patents in G03G- Granted patents
- 264
- Published applications
- 169
- Assignees
- 63
- Inventors
- 559
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 1 |
| 2002 | 7 | 6 |
| 2003 | 4 | 18 |
| 2004 | 8 | 16 |
| 2005 | 9 | 32 |
| 2006 | 18 | 24 |
| 2007 | 16 | 10 |
| 2008 | 18 | 8 |
| 2009 | 9 | 7 |
| 2010 | 11 | 5 |
| 2011 | 4 | 4 |
| 2012 | 8 | 2 |
| 2013 | 4 | 0 |
| 2014 | 4 | 7 |
| 2015 | 2 | 4 |
| 2016 | 6 | 3 |
| 2017 | 1 | 4 |
| 2018 | 3 | 3 |
| 2019 | 6 | 7 |
| 2020 | 5 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrophotographic photoreceptor, production method therefor, electrophotographic photoreceptor cartridge, and image forming apparatus18 Mar 2025US 12,253,823 B2Mitsubishi Chemical Corporation
- Electrophotographic photoconductor, method of manufacturing the same, and electrophotographic device21 Feb 2023US 11,586,119 B2Fuji Electric Co., Ltd.
- Positive charging electrophotographic photoreceptor, electrophotographic cartridge and image forming apparatus29 Mar 2022US 11,287,756 B2Mitsubishi Chemical Corporation
- Electrophotographic photoconductor, method of manufacturing the same, and electrophotographic device including the same27 Jul 2021US 11,073,771 B2Fuji Electric Co., Ltd.
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus13 Oct 2020US 10,802,411 B2KYOCERA Document Solutions Inc.
- Electrophotographic photoreceptor28 May 2026US 2026/0147285 A1Mitsubishi Chemical Corporation
- Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, image formation device, coating liquid for forming electrophotographic photoreceptor protective layer, and compound17 Oct 2024US 2024/0345498 A1Mitsubishi Chemical Corporation
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus13 Jun 2024US 2024/0192613 A1KYOCERA Document Solutions Inc.
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus28 Apr 2022US 2022/0128913 A1KYOCERA Document Solutions Inc.
- Electrophotographic Photoreceptor, Production Method Therefor, Electrophotographic Photoreceptor Cartridge, and Image Forming Apparatus10 Feb 2022US 2022/0043363 A1Mitsubishi Chemical Corporation
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 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 photoconductor containing disazo and trisazo pigments82US 5,578,405 ARicoh Company, Ltd. · 1996
- Electrophotographic element with a phenyhydrazone charge transport layer74US 4,338,388 ARicoh Company, Ltd. · 1982
- Organophotoreceptors for electrophotography featuring novel charge transport compounds based upon hydroxy-functional compounds65US 6,214,503 B1Imation Corp. · 2001