G03G 5/0578
Polycondensates comprising silicon atoms in the main chain
Official title: {Polycondensates comprising silicon atoms in the main chain}
G03G5/0578 (Polycondensates comprising silicon atoms in the main chain) appears on 239 US grants and 167 published applications in this corpus.
Search patents in G03G- Granted patents
- 239
- Published applications
- 167
- Assignees
- 51
- Inventors
- 520
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 12 | 0 |
| 2000 | 11 | 0 |
| 2001 | 7 | 2 |
| 2002 | 8 | 8 |
| 2003 | 5 | 4 |
| 2004 | 5 | 14 |
| 2005 | 9 | 9 |
| 2006 | 9 | 17 |
| 2007 | 8 | 11 |
| 2008 | 12 | 18 |
| 2009 | 11 | 10 |
| 2010 | 14 | 13 |
| 2011 | 13 | 7 |
| 2012 | 10 | 7 |
| 2013 | 7 | 5 |
| 2014 | 10 | 12 |
| 2015 | 14 | 9 |
| 2016 | 7 | 3 |
| 2017 | 4 | 1 |
| 2018 | 0 | 4 |
| 2019 | 1 | 1 |
| 2020 | 4 | 4 |
| 2021 | 3 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 3 |
| 2025 | 0 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus25 Aug 2026US 12,717,251 B2Canon Kabushiki Kaisha
- Scratch-resistant and durable electrophotographic photoreceptor2 Jun 2026US 12,645,160 B2Hong Kong Applied Science and Technology Research Institute Company Limited
- Electrophotographic photoreceptor, manufacturing method of electrophotographic photoreceptor, process cartridge, and electrophotographic apparatus16 Nov 2021US 11,175,599 B2Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, process cartridge, and electrophotographic apparatus10 Aug 2021US 11,086,241 B2Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, production method thereof, and electrophotographic apparatus27 Jul 2021US 11,073,770 B2Fuji Electric Co., Ltd.
- Electrophotographic photoreceptor, process cartridge, image forming apparatus, and functional layer17 Sep 2026US 2026/0277126 A1FUJIFILM Business Innovation Corp.
- Electrophotographic member and electrophotographic image forming apparatus23 Jul 2026US 2026/0211348 A1
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus14 May 2026US 2026/0133512 A1FUJIFILM Business Innovation Corp.
- Electrophotographic apparatus17 Jul 2025US 2025/0231521 A1Canon Kabushiki Kaisha
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus10 Oct 2024US 2024/0337958 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Photoreceptor layers containing polydimethylsiloxane copolymers100US 5,069,993 AXerox Corporation · 1991
- Electrophotographic photoconductor with polysiloxane mixture53US 6,030,736 ARicoh Company, Ltd. · 2000
- Electrophotographic photoconductor and aromatic polycarbonate resin for use therein49US 5,942,363 AHodogaya Chemical Co., Ltd. · 1999
- Electrophotographic photoconductor41US 5,853,935 ARicoh Company, Ltd. · 1998
- Electrophotographic photoconductor and aromatic polycarbonate resin for use therein41US 6,191,249 B1Ricoh Company, Ltd. · 2001