C09B 5/44
Azines of the anthracene series
C09B5/44 (Azines of the anthracene series) appears on 32 US grants and 34 published applications in this corpus.
Search patents in C09B- Granted patents
- 32
- Published applications
- 34
- Assignees
- 30
- Inventors
- 93
- Latest grant
- 12 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 5 |
| 2008 | 2 | 3 |
| 2009 | 1 | 5 |
| 2010 | 0 | 2 |
| 2011 | 0 | 4 |
| 2012 | 4 | 2 |
| 2013 | 0 | 0 |
| 2014 | 3 | 2 |
| 2015 | 2 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Vehicle headlight assembly12 Oct 2021US 11,142,646 B2E. I. Du Pont de Nemours and Company
- Coatable grey polarizer30 Mar 2021US 10,962,696 B2Light Polymers Holding
- Method for producing halogenated organic pigment, halogenated organic pigment obtained by the production method, and colored composition comprising the same18 Dec 2018US 10,155,867 B2Toyo Ink Sc Holdings Co., Ltd.
- Fluorescent metal ion indicators with large stokes shifts19 Dec 2017US 9,846,168 B2Life Technologies Corporation
- Fluorescent metal ion indicators with large stokes shifts21 Jun 2016US 9,372,181 B2Life Technologies Corporation
- Vehicle headlight assembly6 Apr 2023US 2023/0104878 A1DuPont Polymers, Inc.
- Coatable grey polarizer1 Aug 2019US 2019/0235144 A1Light Polymers Holding
- Vehicle headlight assembly14 Mar 2019US 2019/0079562 A1E. I. Du Pont de Nemours and Company
- Fluorescent Metal Ion Indicators with Large Stokes Shifts20 Oct 2016US 2016/0305964 A1Life Technologies Corporation
- Method for producing halogenated organic pigment, halogenated organic pigment obtained by the production method, and colored composition comprising the same23 Jun 2016US 2016/0177100 A1Toyo Ink Sc Holdings Co., Ltd.
Most cited
By later US patents
- Method and materials for thermostable and lightfast dichroic light polarizers82US 5,739,296 ARussian Technology Group · 1998
- Method for thermostable and lightfast dichroic light polarizers54US 6,174,394 B1Optiva, Inc. · 2001
- Pigment compositions41US 4,310,359 AToyo Ink Manufacturing Co., Ltd. · 1982
- Organic semiconductors and their manufacture37US 8,101,776 B2BASF SE · 2012
- Colored composition for color filter and display using color filters formed of the colored composition18US 7,311,953 B2Hitachi Displays, Ltd. · 2007