G03G 5/0546
Polymers comprising at least one carboxyl radical
Official title: {Polymers comprising at least one carboxyl radical, e.g. polyacrylic acid, polycrotonic acid, polymaleic acid; Derivatives thereof, e.g. their esters, salts, anhydrides, nitriles, amides}
G03G5/0546 (Polymers comprising at least one carboxyl radical) appears on 227 US grants and 213 published applications in this corpus.
Search patents in G03G- Granted patents
- 227
- Published applications
- 213
- Assignees
- 49
- Inventors
- 478
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 4 | 1 |
| 2003 | 1 | 8 |
| 2004 | 6 | 6 |
| 2005 | 2 | 16 |
| 2006 | 7 | 22 |
| 2007 | 6 | 10 |
| 2008 | 9 | 14 |
| 2009 | 15 | 12 |
| 2010 | 15 | 10 |
| 2011 | 5 | 10 |
| 2012 | 10 | 7 |
| 2013 | 12 | 9 |
| 2014 | 10 | 11 |
| 2015 | 12 | 12 |
| 2016 | 6 | 3 |
| 2017 | 4 | 3 |
| 2018 | 2 | 6 |
| 2019 | 8 | 10 |
| 2020 | 10 | 16 |
| 2021 | 10 | 6 |
| 2022 | 4 | 1 |
| 2023 | 1 | 6 |
| 2024 | 0 | 1 |
| 2025 | 1 | 5 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus16 Jun 2026US 12,656,720 B2FUJIFILM Business Innovation Corp.
- Electrophotographic apparatus and process cartridge10 Feb 2026US 12,547,087 B2Canon Kabushiki Kaisha
- Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and method of producing electrophotographic photosensitive member3 Feb 2026US 12,541,157 B2Canon Kabushiki Kaisha
- Process cartridge and electrophotographic apparatus14 Oct 2025US 12,443,119 B2Canon Kabushiki Kaisha
- Electrophotographic photosensitive member, process cartridge, and image forming apparatus1 Aug 2023US 11,714,359 B2FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus1 Oct 2026US 2026/0299445 A1KYOCERA Document Solutions Inc.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus24 Sep 2026US 2026/0288023 A1FUJIFILM Business Innovation Corp.
- Electrophotographic photoreceptor, process cartridge, image forming apparatus, and functional layer17 Sep 2026US 2026/0277126 A1FUJIFILM Business Innovation Corp.
- Electrophotographic member, developing apparatus, electrophotographic process cartridge, and electrophotographic image forming apparatus10 Sep 2026US 2026/0267258 A1Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus14 May 2026US 2026/0133509 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Electrophotographic Photoconductor62US 5,427,880 ARicoh Company, Ltd. · 1995
- Photoconductive imaging members61US 7,037,631 B2Xerox Corporation · 2006
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus60US 9,063,505 B2Canon Kabushiki Kaisha · 2015
- Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus41US 8,632,931 B2Canon Kabushiki Kaisha · 2014
- Photoreceptor with improved overcoat layer38US 7,384,717 B2Xerox Corporation · 2008