C09B 29/3621
From a pyridine ring
Official title: {from a pyridine ring}
C09B29/3621 (From a pyridine ring) appears on 212 US grants and 83 published applications in this corpus.
Search patents in C09B- Granted patents
- 212
- Published applications
- 83
- Assignees
- 64
- Inventors
- 357
- Latest grant
- 9 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 22 | 0 |
| 1978 | 12 | 0 |
| 1979 | 9 | 0 |
| 1980 | 9 | 0 |
| 1981 | 12 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 3 | 1 |
| 2004 | 1 | 6 |
| 2005 | 2 | 1 |
| 2006 | 6 | 4 |
| 2007 | 4 | 5 |
| 2008 | 0 | 6 |
| 2009 | 5 | 10 |
| 2010 | 5 | 10 |
| 2011 | 5 | 8 |
| 2012 | 7 | 2 |
| 2013 | 2 | 3 |
| 2014 | 1 | 5 |
| 2015 | 4 | 7 |
| 2016 | 4 | 5 |
| 2017 | 5 | 4 |
| 2018 | 6 | 2 |
| 2019 | 3 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Colorant mixtures9 Aug 2022US 11,407,912 B2Huntsman International LLC
- Sensor dyes for real-time sensing of metal ions in aqueous environments15 Mar 2022US 11,275,071 B2UWM Research Foundation, Inc.
- Disperse azo dyes, a process for the preparation thereof and the use thereof2 Mar 2021US 10,934,435 B2Huntsman International LLC
- 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
- Colorant Mixtures6 May 2021US 2021/0130631 A1Huntsman Advanced Materials (Switzerland) GmbH
- Sensor dyes for real-time sensing of metal ions in aqueous environments30 Jan 2020US 2020/0033314 A1AquaMetals, LLC
- Disperse Azo Dyes, a Process for the Preparation Thereof and the Use Thereof23 May 2019US 2019/0153230 A1Huntsman International LLC
- Coloring compound and thermal transfer recording sheet23 Aug 2018US 2018/0237640 A1Canon Kabushiki Kaisha
- Yellow toner3 May 2018US 2018/0120723 A1Zeon Corporation
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
- Ink jet ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus34US 7,618,484 B2Canon Kabushiki Kaisha · 2009