C09B 1/514
N-aryl derivatives
Official title: N-aryl derivatives (N-aralkyl derivatives C09B1/515)
C09B1/514 (N-aryl derivatives) appears on 39 US grants and 19 published applications in this corpus.
Search patents in C09B- Granted patents
- 39
- Published applications
- 19
- Assignees
- 25
- Inventors
- 87
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 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 | 3 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 2 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 2 | 1 |
| 2011 | 1 | 2 |
| 2012 | 2 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 2 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Anthraquinone compound, liquid crystal composition containing said compound, and light-controlling element17 Jun 2025US 12,331,240 B2Nippon Kayaku Kabushiki Kaisha
- Anthraquinone compound, liquid crystal composition containing said compound, and dimming element27 May 2025US 12,312,294 B2Nippon Kayaku Kabushiki Kaisha
- Contact lens10 Dec 2024US 12,164,182 B2CooperVision International Limited
- Anthraquinone dye-containing material, composition including the same, camera including the same, and associated methods23 Jul 2013US 8,492,569 B2Cheil Industries Inc.
- Colored particles11 Sep 2012US 8,262,790 B2Canon Kabushiki Kaisha
- Anthraquinone compound, liquid crystal composition containing said compound, and dimming element12 Dec 2024US 2024/0409497 A1Nippon Kayaku Kabushiki Kaisha
- Anthraquinone compound, liquid crystal composition containing said compound, and light-controlling element5 Dec 2024US 2024/0400899 A1Nippon Kayaku Kabushiki Kaisha
- Contact lens10 Mar 2022US 2022/0075210 A1CooperVision International Limited
- Anthraquinonic derivatives and their use as colouring agents7 Oct 2021US 2021/0309860 A1Pili
- Method for preparing phenylaminohydroxyanthraquinones30 May 2019US 2019/0161617 A1LANXESS Deutschland GmbH
Most cited
By later US patents
- Colorant compounds97US 6,958,406 B2Xerox Corporation · 2005
- Phase change inks87US 6,821,327 B2Xerox Corporation · 2004
- Methods for making colorant compounds83US 7,053,227 B2Xerox Corporation · 2006
- Method for producing lightfast disperse dyestuffs containing a build-in photostabilizer [molecule] compound55US 4,902,787 ANorth Carolina State University · 1990
- Color filter and liquid crystal display device having the same35US 6,509,125 B1Toppan Printing Co., Ltd. · 2003