C09B 3/44
Preparation from starting materials already containing the pyranthrone nucleus
C09B3/44 (Preparation from starting materials already containing the pyranthrone nucleus) appears on 4 US grants and 2 published applications in this corpus.
Search patents in C09B- Granted patents
- 4
- Published applications
- 2
- Assignees
- 3
- Inventors
- 9
- Latest grant
- 15 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method for manufacturing quantum dot layer, method for manufacturing luminescence device including the quantum dot layer, and display device including the quantum dot layer15 Mar 2022US 11,276,833 B2Samsung Display Co., Ltd.
- Tert-alkylphenoxy-substituted polycyclic compounds5 Dec 2006US 7,145,010 B2BASF SE
- Fluorescent dyes4 Jul 2000US 6,084,132 ARohm and Haas Company
- Process of preparing pyranthrone pigments20 Mar 1979US 4,145,356 ABASF SE
- Method for manufacturing quantum dot layer, method for manufacturing luminescence device including the quantum dot layer, and display device including the quantum dot layer1 Oct 2020US 2020/0313105 A1Samsung Display Co., Ltd.
- Tert alkylphenoxy substituted polycyclic compounds11 Mar 2004US 2004/0049030 A1BASF SE
Most cited
By later US patents