C09B 31/16
Trisazo dyes
C09B31/16 (Trisazo dyes) appears on 93 US grants and 59 published applications in this corpus.
Search patents in C09B- Granted patents
- 93
- Published applications
- 59
- Assignees
- 39
- Inventors
- 202
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 4 |
| 2006 | 3 | 1 |
| 2007 | 2 | 4 |
| 2008 | 1 | 3 |
| 2009 | 5 | 6 |
| 2010 | 0 | 4 |
| 2011 | 4 | 8 |
| 2012 | 2 | 2 |
| 2013 | 6 | 4 |
| 2014 | 2 | 4 |
| 2015 | 6 | 1 |
| 2016 | 4 | 3 |
| 2017 | 0 | 5 |
| 2018 | 3 | 0 |
| 2019 | 4 | 3 |
| 2020 | 1 | 2 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 1 |
| 2024 | 3 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- C09B 31/26From other coupling components "d"32
- C09B 31/20From a coupling component"d" containing a directive hydroxyl group23
- C09B 31/22From a coupling component "d" containing directive hydroxyl and amino groups22
- C09B 31/18From a coupling component "d" containing a directive amine group21
- C09B 31/24From a coupling component "d" containing reactive methylene groups2
Recent patents
- Optical sheet and optical component14 Oct 2025US 12,442,954 B2Sumitomo Bakelite Co., Ltd.
- Dichroic azo-azomethine dyes for liquid crystal compositions22 Oct 2024US 12,122,919 B2BASF SE
- Azo compound or salt thereof, and dye-based polarizing film and dye-based polarizing plate containing same24 Sep 2024US 12,098,287 B2Nippon Kayaku Kabushiki Kaisha
- Anisotropic light absorption film and laminate10 Sep 2024US 12,085,742 B2FUJIFILM Corporation
- Composition for forming dye type polarizer and dye type polarizer7 Jan 2020US 10,527,758 B2LG Chem.Ltd.
- Light absorption anisotropic layer, laminate, and infrared light sensor system2 May 2024US 2024/0142682 A1FUJIFILM Corporation
- Optical sheet and optical component12 Jan 2023US 2023/0011467 A1Sumitomo Bakelite Co., Ltd.
- Dichroic azo-azomethine dyes for liquid crystal compositions31 Mar 2022US 2022/0098412 A1BASF SE
- Azo Compound Or Salt Thereof, And Dye-Based Polarizing Film And Dye-Based Polarizing Plate Containing Same13 Jan 2022US 2022/0010139 A1Nippon Kayaku Kabushiki Kaisha
- Ink set, ink cartridge, ink jet printer, and ink jet recording method9 Jul 2020US 2020/0216701 A1FUJIFILM Corporation
Most cited
By later US patents
- Ink, and ink-jet recording method and apparatus employing the ink34US 5,082,496 ACanon Kabushiki Kaisha · 1992
- Ink, and recording process using the same30US 5,110,356 ACanon Kabushiki Kaisha · 1992
- Ink, and recording process making use of it28US 5,135,570 ACanon Kabushiki Kaisha · 1992
- Trisazo compounds, and dye compositions containing same27US 5,258,505 ACanon Kabushiki Kaisha · 1993
- Waterfast dye and aqueous ink25US 5,198,022 ALexmark International, Inc. · 1993