C09B 29/18
Ortho-hydroxy carbonamides
Official title: ortho-Hydroxy carbonamides
C09B29/18 (Ortho-hydroxy carbonamides) appears on 71 US grants and 26 published applications in this corpus.
Search patents in C09B- Granted patents
- 71
- Published applications
- 26
- Assignees
- 38
- Inventors
- 146
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 6 |
| 2011 | 4 | 4 |
| 2012 | 5 | 4 |
| 2013 | 4 | 3 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Azo pigment, ink, paint, colorant for plastics, colored molded article, colorant for stationery and writing materials, printing agent, toner, dispersion and resist for color filters, and cosmetic material21 Apr 2026US 12,606,717 B2DIC Corporation
- Water-based inkjet yellow ink, ink set, and method for producing printed matter10 Jun 2025US 12,325,802 B2artience Co., Ltd.
- Use of novel naphthol AS-pigment-mixtures in printing-materials22 Sep 2020US 10,782,625 B2Clariant Plastics & Coatings Ltd
- Naphthol as-pigments25 Aug 2020US 10,752,779 B2Clariant Plastics & Coatings Ltd
- Ink set for inkjet recording, recording method, and colored body using same17 Mar 2015US 8,979,988 B2Nippon Kayaku Kabushiki Kaisha
- Azo pigment, ink, paint, colorant for plastics, colored molded article, colorant for stationery and writing materials, printing agent, toner, dispersion and resist for color filters, and cosmetic material14 Mar 2024US 2024/0084155 A1DIC Corporation
- Water-based inkjet yellow ink, ink set, and method for producing printed matter10 Mar 2022US 2022/0073772 A1Toyo Ink Sc Holdings Co., Ltd.
- Display device17 Jan 2019US 2019/0018273 A1Samsung Display Co., Ltd.
- Use of novel naphthol as-pigment-mixtures in printing-materials1 Nov 2018US 2018/0312704 A1Clariant Plastics & Coatings Ltd
- Novel naphthol as-pigments28 Jun 2018US 2018/0179387 A1Clariant Plastics & Coatings Ltd
Most cited
By later US patents
- Pigment compositions41US 4,310,359 AToyo Ink Manufacturing Co., Ltd. · 1982
- Electrophotographic photoreceptor comprising azo compound and coupler18US 4,912,001 ADainichi Seika Color & Chemicals Mfg. Co., Ltd. · 1990
- Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus16US 6,139,997 ACanon Kabushiki Kaisha · 2000
- Azo compounds and process for producing the same14US 5,973,126 AKabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo · 1999
- Water-insoluble violet benzimidazolone monoazo pigments14US 6,706,864 B1Dominion Colour Corporation · 2004