C09B 5/14
Benz-azabenzanthrones
Official title: Benz-azabenzanthrones (anthrapyridones)
C09B5/14 (Benz-azabenzanthrones) appears on 93 US grants and 60 published applications in this corpus.
Search patents in C09B- Granted patents
- 93
- Published applications
- 60
- Assignees
- 42
- Inventors
- 197
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 3 | 0 |
| 2004 | 1 | 4 |
| 2005 | 2 | 4 |
| 2006 | 4 | 8 |
| 2007 | 6 | 1 |
| 2008 | 1 | 3 |
| 2009 | 3 | 6 |
| 2010 | 9 | 10 |
| 2011 | 4 | 3 |
| 2012 | 2 | 3 |
| 2013 | 4 | 2 |
| 2014 | 1 | 6 |
| 2015 | 7 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 1 |
| 2018 | 1 | 3 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Aqueous additive solution for ink composition, aqueous colorant solution for ink composition, ink composition, ink composition for ink jet recording, and ink jet recording method2 Sep 2025US 12,404,417 B2FUJIFILM Corporation
- LED lighting elements comprising molded parts made of translucent polycarbonate compositions having a deep gloss effect7 Mar 2023US 11,598,495 B2Covestro Deutschland AG
- Magenta ink for inkjet27 Sep 2022US 11,453,792 B2Toyo Ink Sc Holdings Co., Ltd.
- Coloring composition, ink jet recording ink, ink jet recording method, and ink jet printer cartridge23 Jun 2020US 10,689,535 B2FUJIFILM Corporation
- Colored resin composition exhibiting pleochroism, and molded plastics manufactured using same12 Nov 2019US 10,472,495 B2Lotte Advanced Materials Co., Ltd.
- Aqueous additive solution for ink composition, aqueous colorant solution for ink composition, ink composition, ink composition for ink jet recording, and ink jet recording method18 Jan 2024US 2024/0018376 A1FUJIFILM Corporation
- Led lighting elements comprising molded parts made of translucent polycarbonate compositions having a deep gloss effect4 Jun 2020US 2020/0173616 A1Covestro Deutschland AG
- Magenta ink for inkjet31 Oct 2019US 2019/0330486 A1Toyo Ink Co., Ltd.
- Coloring composition, ink jet recording ink, ink jet recording method, and ink jet printer cartridge6 Dec 2018US 2018/0346743 A1FUJIFILM Corporation
- Colored Resin Composition Exhibiting Pleochroism, and Molded Plastics Manufactured Using Same10 May 2018US 2018/0127566 A1Lotte Advanced Materials Co., Ltd.
Most cited
By later US patents
- Ink-jet color printing system51US 4,446,470 AFuji Photo Film Co., Ltd. · 1984
- Condensation copolymers containing copolymerized isoquinoline derivative colorants and products therefrom47US 4,740,581 AEastman Kodak Company · 1988
- Organic semiconductors and their manufacture37US 8,101,776 B2BASF SE · 2012
- Ink jet ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus34US 7,618,484 B2Canon Kabushiki Kaisha · 2009
- Process for preparing 1-cyano-3H-dibenz[f,ij]isoquinoline-2,7-diones and their use as toners for polyesters32US 5,340,910 AEastman Chemical Company · 1994