C09B 29/335
Free of acid groups
Official title: {free of acid groups}
C09B29/335 (Free of acid groups) appears on 65 US grants and 32 published applications in this corpus.
Search patents in C09B- Granted patents
- 65
- Published applications
- 32
- Assignees
- 25
- Inventors
- 110
- Latest grant
- 10 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 4 |
| 2009 | 1 | 1 |
| 2010 | 4 | 7 |
| 2011 | 6 | 4 |
| 2012 | 1 | 2 |
| 2013 | 4 | 1 |
| 2014 | 2 | 2 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Pigment composition10 Jan 2023US 11,549,018 B2Sanyo Color Works, Ltd.
- Yellow toner21 Sep 2021US 11,126,101 B2Zeon Corporation
- Coloring composition, color filter, pattern forming method, solid-state imaging device, and image display device28 Apr 2020US 10,634,997 B2FUJIFILM Corporation
- Storage-stable dye solutions27 Aug 2019US 10,392,514 B2Archroma IP GmbH
- Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and toner18 Apr 2017US 9,625,845 B2Canon Kabushiki Kaisha
- Yellow toner5 Nov 2020US 2020/0348610 A1Zeon Corporation
- Pigment composition29 Aug 2019US 2019/0264030 A1Sanyo Color Works, Ltd.
- Coloring composition, color filter, pattern forming method, solid-state imaging device, and image display device15 Nov 2018US 2018/0329295 A1FUJIFILM Corporation
- Storage-stable dye solutions26 Jan 2017US 2017/0022366 A1Archroma IP GmbH
- Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and toner10 Mar 2016US 2016/0070189 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Colorant compounds84US 7,381,831 B1Xerox Corporation · 2008
- AZO compound, and pigment dispersant, pigment composition, pigment dispersion and toner including the azo compound56US 8,377,616 B2Canon Kabushiki Kaisha · 2013
- azo compound, and pigment dispersant, pigment composition, pigment dispersion and toner including the AZO compound52US 8,628,899 B2Canon Kabushiki Kaisha · 2014
- Ink, ink set, ink jet recording method, ink cartridge and ink jet recording apparatus32US 7,297,203 B2Canon Kabushiki Kaisha · 2007
- Method for producing compound having colorant structure at main chain terminal of polymer, and pigment dispersant, pigment composition, pigment dispersion and toner containing compound obtained by the production method25US 9,556,290 B2Canon Kabushiki Kaisha · 2017