C09B 5/34
Anthraquinone acridones or thioxanthrones
C09B5/34 (Anthraquinone acridones or thioxanthrones) appears on 12 US grants and 6 published applications in this corpus.
Search patents in C09B- Granted patents
- 12
- Published applications
- 6
- Assignees
- 9
- Inventors
- 25
- Latest grant
- 30 Mar 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 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 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Coatable grey polarizer30 Mar 2021US 10,962,696 B2Light Polymers Holding
- Photopolymer composition for holographic recording23 Jan 2018US 9,874,811 B2Samsung Electronics Co., Ltd.
- Recording material and optical information recording medium17 Oct 2017US 9,792,944 B2FUJIFILM Corporation
- Fluorescent amino acid derivatives19 Apr 2011US 7,928,236 B2National University Corporation Okayama University
- Preparation of dyed plastics or polymeric dye particles2 Aug 2005US 6,923,836 B2Ciba Specialty Chemicals Corporation
- Coatable grey polarizer1 Aug 2019US 2019/0235144 A1Light Polymers Holding
- Photopolymer composition for holographic recording16 Mar 2017US 2017/0075214 A1Samsung Electronics Co., Ltd.
- Recording material and optical information recording medium10 Mar 2016US 2016/0071538 A1FUJIFILM Corporation
- Fluorescent Amino Acid Derivatives17 Jun 2010US 2010/0152417 A1National University Corporation Okayama University
- Dyeing or printing of manufactured natural polymer and synthetic hydrophobic fibre materials15 Apr 2004US 2004/0068808 A1Ciba Specialty Chemicals Corporation
Most cited
By later US patents
- Vat dyestuff prepared from crude anthraquinone mixtures1US 4,405,785 AToms River Chemical Corporation · 1983
- Dyeing or printing of manufactured natural polymer and synthetic hydrophobic fiber materials1US 6,893,472 B2Ciba Specialty Chemicals Corporation · 2005
- Preparation of dyed plastics or polymeric dye particles1US 6,923,836 B2Ciba Specialty Chemicals Corporation · 2005