C09B 33/28
Tetrazo dyes of the type a->b->k<-c<-d
Official title: Tetrazo dyes of the type A->B->K<-C<-D
C09B33/28 (Tetrazo dyes of the type a->b->k<-c<-d) appears on 15 US grants and 10 published applications in this corpus.
Search patents in C09B- Granted patents
- 15
- Published applications
- 10
- Assignees
- 14
- Inventors
- 41
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
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| 1976 | 1 | 0 |
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| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 2 | 2 |
| 2015 | 0 | 1 |
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| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Water soluble and water fast dyes for ink jet printing22 Nov 2016US 9,499,707 B2Rex-Tone Industries Ltd
- Ink composition, inkjet recording method and colored body21 Oct 2014US 8,864,891 B2Nippon Kayaku Kabushiki Kaisha
- Ink composition, ink for inkjet recording and inkjet recording method16 Sep 2014US 8,834,619 B2FUJIFILM Corporation
- Ink set, inkjet recording method and recorded material12 Feb 2013US 8,372,190 B2FUJIFILM Corporation
- 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
- Water Soluble and Water Fast Dyes for Ink Jet Printing19 Feb 2015US 2015/0050466 A1Ilford Imaging Switzerland GmbH
- Dye-Based Polarizing Element And Polarizing Plate27 Mar 2014US 2014/0085721 A1Nippon Kayaku Kabushiki Kaisha
- Ink composition, ink for inkjet recording and inkjet recording method16 Jan 2014US 2014/0013997 A1FUJIFILM Corporation
- Ink composition, inkjet recording method and colored body3 Oct 2013US 2013/0257974 A1Nippon Kayaku Kabushiki Kaisha
Most cited
By later US patents
- Tetrakisazo compounds having two 1-hydroxy-3- or 4-sulfo-6- or 7-amino- or substituted amino-naphthalene coupling component radicals the amino or substituted amino groups of which are linked 1,3,5-triazine rings20US 4,670,547 ASandoz Ltd. · 1987
- Ink set, ink cartridge, inkjet recording method, and recorded matter9US 7,740,695 B2Seiko Epson Corporation · 2010
- Ink set, inkjet recording method and recorded material9US 8,372,190 B2FUJIFILM Corporation · 2013
- Near-infrared ray absorbing polyazo compound7US 6,140,477 AHakkol Chemical Co., Ltd. · 2000
- Process for the preparation of low-salt, liquid dyestuff preparations5US 6,120,561 ABayer Aktiengesellschaft · 2000