C09B 35/50
Tetrazo dyes
C09B35/50 (Tetrazo dyes) appears on 74 US grants and 26 published applications in this corpus.
Search patents in C09B- Granted patents
- 74
- Published applications
- 26
- Assignees
- 41
- Inventors
- 153
- Latest grant
- 6 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 6 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 5 |
| 2007 | 1 | 2 |
| 2008 | 3 | 2 |
| 2009 | 2 | 3 |
| 2010 | 3 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 2 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 4 |
| 2017 | 4 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 3 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- C09B 35/56Of the type [image cpc-sch-c09b-1021.gif]20
- C09B 35/60Of the type [image cpc-sch-c09b-1023.gif]12
- C09B 35/52Of the type [image cpc-sch-c09b-1019.gif]11
- C09B 35/62Of the type [image cpc-sch-c09b-1024.gif]3
- C09B 35/58Of the type [image cpc-sch-c09b-1022.gif]2
- C09B 35/54Of the type [image cpc-sch-c09b-1020.gif]1
Recent patents
- Water-based ink for ink-jet recording6 Sep 2022US 11,434,386 B2Brother Kogyo Kabushiki Kaisha
- Dye-based polarizing plate for infrared wavelength range using azo, anthraquinone, or cyanine compound19 Jul 2022US 11,391,873 B2Nippon Kayaku Kabushiki Kaisha
- Ceramic scintillator based on cubic garnet compositions for positron emission tomography (PET)10 May 2022US 11,326,099 B2GE Precision Healthcare LLC
- Ink jet recording ink15 Aug 2017US 9,732,242 B2FUJIFILM Corporation
- Acid dyes, process for the production thereof and their use8 Aug 2017US 9,725,597 B2DyStar Colours Distribution GmbH
- Ceramic scintillator based on cubic garnet compositions for positron emission tomography (pet)6 May 2021US 2021/0130688 A1General Electric Company
- Water-Based Ink For Ink-Jet Recording3 Oct 2019US 2019/0300735 A1Brother Kogyo Kabushiki Kaisha
- Dye-Based Polarizing Plate For Infrared Wavelength Range5 Sep 2019US 2019/0271801 A1Nippon Kayaku Kabushiki Kaisha
- Ink jet recording ink13 Oct 2016US 2016/0297980 A1FUJIFILM Corporation
- Acid dyes, process for the production thereof and their use15 Sep 2016US 2016/0264784 A1DyStar Colours Distribution GmbH
Most cited
By later US patents
- Aqueous ink composition51US 4,620,875 ARicoh Company, Ltd. · 1986
- Asymmetric dichroic dye molecules having poly(arylazo) linking groups, a bis-substituted aryl thiazyl end group, and another end group46US 4,565,424 AMinnesota Mining and Manufacturing Company · 1986
- Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus27US 7,198,665 B2Canon Kabushiki Kaisha · 2007
- Class of dichroic dyes for use with liquid crystals26US 4,401,369 AElectronic Display Systems, Inc. · 1983
- Liquid crystal coupled dichroic dyes24US 5,389,285 AHercules Incorporated · 1995