C09B 29/3626
From a pyridine ring containing one or more hydroxyl groups
Official title: {from a pyridine ring containing one or more hydroxyl groups (or = O)}
C09B29/3626 (From a pyridine ring containing one or more hydroxyl groups) appears on 123 US grants and 43 published applications in this corpus.
Search patents in C09B- Granted patents
- 123
- Published applications
- 43
- Assignees
- 48
- Inventors
- 241
- Latest grant
- 10 Dec 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 15 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 3 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 0 |
| 2006 | 2 | 3 |
| 2007 | 3 | 3 |
| 2008 | 0 | 2 |
| 2009 | 3 | 4 |
| 2010 | 2 | 6 |
| 2011 | 1 | 3 |
| 2012 | 4 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 3 |
| 2015 | 1 | 5 |
| 2016 | 3 | 3 |
| 2017 | 3 | 4 |
| 2018 | 4 | 2 |
| 2019 | 3 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Coloring compound and thermal transfer recording sheet10 Dec 2019US 10,501,631 B2Canon Kabushiki Kaisha
- Storage-stable dye solutions27 Aug 2019US 10,392,514 B2Archroma IP GmbH
- High wet fast disperse dyes and mixtures thereof28 May 2019US 10,301,474 B2DyStar Colours Distribution GmbH
- Particles for electrophoretic displays23 Oct 2018US 10,106,686 B2Merck Patent GmbH
- Electrophoretic fluid14 Aug 2018US 10,048,562 B2Merck Patent GmbH
- Coloring compound and thermal transfer recording sheet23 Aug 2018US 2018/0237640 A1Canon Kabushiki Kaisha
- Yellow toner3 May 2018US 2018/0120723 A1Zeon Corporation
- High wet fast disperse dyes and mixtures thereof26 Oct 2017US 2017/0306154 A1DyStar Coulours Distribution GmbH
- Storage-stable dye solutions26 Jan 2017US 2017/0022366 A1Archroma IP GmbH
- Novel Pyridone Dyes19 Jan 2017US 2017/0015829 A1Clariant International Ltd.
Most cited
By later US patents
- Azo pyridone colorants103US 6,590,082 B1Xerox Corporation · 2003
- Method for manufacturing a semiconductor device and suppressing the generation of bulk microdefects near the substrate surface layer87US 4,931,405 AKabushiki Kaisha Toshiba · 1990
- Coloring compound and yellow toner containing the coloring compound59US 7,833,685 B2Canon Kabushiki Kaisha · 2010
- Coloring compound, yellow toner, sheet for heat-sensitive transfer recording, and ink41US 8,211,606 B2Canon Kabushiki Kaisha · 2012
- Toners and yellow dye compounds used therein21US 4,734,349 AEastman Kodak Company · 1988