G03G 5/0644
Containing two or more hetero rings
Official title: {containing two or more hetero rings}
G03G5/0644 (Containing two or more hetero rings) appears on 530 US grants and 267 published applications in this corpus.
Search patents in G03G- Granted patents
- 530
- Published applications
- 267
- Assignees
- 84
- Inventors
- 776
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 6 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 6 | 0 |
| 1983 | 12 | 0 |
| 1984 | 19 | 0 |
| 1985 | 8 | 0 |
| 1986 | 9 | 0 |
| 1987 | 8 | 0 |
| 1988 | 14 | 0 |
| 1989 | 17 | 0 |
| 1990 | 21 | 0 |
| 1991 | 16 | 0 |
| 1992 | 29 | 0 |
| 1993 | 5 | 0 |
| 1994 | 23 | 0 |
| 1995 | 12 | 0 |
| 1996 | 18 | 0 |
| 1997 | 11 | 0 |
| 1998 | 21 | 0 |
| 1999 | 13 | 0 |
| 2000 | 8 | 0 |
| 2001 | 15 | 2 |
| 2002 | 11 | 5 |
| 2003 | 7 | 11 |
| 2004 | 9 | 16 |
| 2005 | 6 | 22 |
| 2006 | 11 | 29 |
| 2007 | 18 | 15 |
| 2008 | 19 | 18 |
| 2009 | 13 | 19 |
| 2010 | 12 | 3 |
| 2011 | 11 | 8 |
| 2012 | 13 | 8 |
| 2013 | 7 | 6 |
| 2014 | 8 | 12 |
| 2015 | 8 | 11 |
| 2016 | 8 | 7 |
| 2017 | 6 | 5 |
| 2018 | 5 | 10 |
| 2019 | 15 | 14 |
| 2020 | 12 | 11 |
| 2021 | 11 | 5 |
| 2022 | 1 | 4 |
| 2023 | 2 | 5 |
| 2024 | 0 | 9 |
| 2025 | 3 | 8 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus9 Jun 2026US 12,650,655 B2FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus2 Jun 2026US 12,645,161 B2FUJIFILM Business Innovation Corp.
- Conductive substrate for electrophotographic photoreceptor, electrophotographic photoreceptor, process cartridge, image forming apparatus, and method for manufacturing conductive substrate for electrophotographic photoreceptor24 Feb 2026US 12,560,885 B2FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus17 Feb 2026US 12,554,207 B2FUJIFILM Business Innovation Corp.
- Electrophotographic apparatus and process cartridge10 Feb 2026US 12,547,087 B2Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus24 Sep 2026US 2026/0288023 A1FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, method of producing an electrophotographic photoreceptor, process cartridge, and image forming apparatus10 Sep 2026US 2026/0267246 A1KYOCERA Document Solutions Inc.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus16 Apr 2026US 2026/0104653 A1FUJIFILM Business Innovation Corp.
- Compound, composition, and electrophotographic photoreceptor19 Feb 2026US 2026/0049081 A1Mitsubishi Chemical Corporation
- Conductive substrate for electrophotographic photoreceptor, electrophotographic photoreceptor, process cartridge, image forming apparatus, and method for manufacturing conductive substrate for electrophotographic photoreceptor28 Aug 2025US 2025/0271808 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Photoconductive imaging members with perylene pigment compositions332US 4,587,189 AXerox Corporation · 1986
- Electrophotographic element with carbazole hydrazone or anile charge transport compounds130US 4,297,426 ARicoh Company, Ltd. · 1981
- Electrophotographic apparatus with photoreceptor having undercoat layer, containing an electronic transporting pigment and reactive organometallic compound116US 5,815,776 AFuji Xerox Co., Ltd. · 1998
- Photoconductive imaging members111US 5,756,245 AXerox Corporation · 1998
- Electrophotographic photoconductor and method of producing same91US 5,958,638 ASharp Kabushiki Kaisha · 1999