G03G 9/0904
Carbon black
Official title: {Carbon black}
G03G9/0904 (Carbon black) appears on 300 US grants and 292 published applications in this corpus.
Search patents in G03G- Granted patents
- 300
- Published applications
- 292
- Assignees
- 82
- Inventors
- 886
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 2 |
| 2002 | 4 | 9 |
| 2003 | 13 | 10 |
| 2004 | 1 | 9 |
| 2005 | 1 | 6 |
| 2006 | 8 | 13 |
| 2007 | 5 | 3 |
| 2008 | 3 | 10 |
| 2009 | 3 | 13 |
| 2010 | 8 | 11 |
| 2011 | 5 | 10 |
| 2012 | 11 | 19 |
| 2013 | 18 | 9 |
| 2014 | 14 | 12 |
| 2015 | 6 | 22 |
| 2016 | 11 | 14 |
| 2017 | 19 | 34 |
| 2018 | 32 | 19 |
| 2019 | 17 | 11 |
| 2020 | 11 | 13 |
| 2021 | 8 | 6 |
| 2022 | 1 | 15 |
| 2023 | 4 | 2 |
| 2024 | 8 | 10 |
| 2025 | 5 | 6 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus and varnish applying apparatus27 Jan 2026US 12,535,754 B2Canon Kabushiki Kaisha
- Particle set for producing printed matter, apparatus for producing printed matter, and method for producing printed matter2 Dec 2025US 12,487,537 B2FUJIFILM Business Innovation Corp.
- Toner, method for manufacturing the toner, toner accommodating unit, image forming apparatus, and image forming method8 Jul 2025US 12,353,166 B2Ricoh Company, Ltd.
- Image forming system and image forming apparatus17 Jun 2025US 12,332,594 B2Canon Kabushiki Kaisha
- Toner, toner cartridge, and image forming apparatus21 Jan 2025US 12,204,278 B2Toshiba Tec Kabushiki Kaisha
- Resin particle, method for manufacturing resin particle, toner resin particle, toner, developer, toner storage unit, and image forming apparatus1 Oct 2026US 2026/0297321 A1
- Toner for development of electrostatic images23 Jul 2026US 2026/0211351 A1Kao Corporation
- Toner and two-component developer23 Apr 2026US 2026/0110980 A1Sharp Kabushiki Kaisha
- Black toner19 Mar 2026US 2026/0079418 A1Canon Kabushiki Kaisha
- Toner18 Dec 2025US 2025/0383612 A1
Most cited
By later US patents
- Toner and developer compositions165US 6,593,049 B1Xerox Corporation · 2003
- Encapsulated magnetic particles pigments and carbon black, compositions and methods related thereto77US 5,543,219 AA. B. Dick Company · 1996
- Toner69US 9,829,816 B2Canon Kabushiki Kaisha · 2017
- Carbon black graft polymer, method for production thereof, and use thereof55US 5,952,429 ANippon Shokubai Co., Ltd. · 1999
- Particle having an attached halide group and methods of making the same54US 6,103,380 ACabot Corporation · 2000