C09B 1/42
The acyl groups being residues of an aromatic carboxylic acid
Official title: the acyl groups being residues of an aromatic carboxylic acid
C09B1/42 (The acyl groups being residues of an aromatic carboxylic acid) appears on 13 US grants and 4 published applications in this corpus.
Search patents in C09B- Granted patents
- 13
- Published applications
- 4
- Assignees
- 7
- Inventors
- 46
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- One-way circularly polarized light generated by propagation through Ch-GLC films doped with light-absorbing dyes4 Nov 2025US 12,461,297 B2University of Rochester
- AZO compound and ink containing the compound1 Dec 2015US 9,200,171 B2Mitsubishi Chemical Corporation
- Bridged anthraquinones15 Jun 1999US 5,912,386 ABayer Aktiengesellschaft
- Anthraquinone vat dyes2 Jul 1991US 5,028,709 ACiba-Geigy Corporation
- Anthraquinone derivative as a dichroic dye for a liquid-crystal material, liquid-crystal material and an electrooptical device12 Jun 1990US 4,933,104 A
- One-Way Circularly Polarized Light Generated by Propagation through Ch-GLC Films Doped with Light-Absorbing Dyes25 Aug 2022US 2022/0268982 A1University of Rochester
- Manufacture method of polarization and color filter function integration film and liquid crystal display panel1 Jun 2017US 2017/0153496 A1Shenzhen China Star Optoelectronics Technology Co., Ltd.
- Azo compound and ink containing the compound20 Mar 2014US 2014/0078577 A1Mitsubishi Chemical Corporation
- Preparation method of original dye of vat brown r22 Nov 2012US 2012/0296097 A1
Most cited
By later US patents
- Process for the improvement of dyeing properties of pigments of the anilino and arylmercapto anthraquinone series10US 4,128,396 ACiba-Geigy Corporation · 1978
- Red-1-hydroxy-3,6-disulfo-8-acetamido-2-(3 phosphonophenylazo)naphthalene dyes7US 4,098,784 ABurlington Industries, Inc. · 1978
- Process for the bulk dyeing of polyesters3US 3,939,113 ACiba-Geigy Corporation · 1976
- Process for the manufacture of halogen-containing anthraquinoidal compounds, their use and new halogen-containing anthraquinoidal compounds3US 3,975,410 ACiba-Geigy Corporation · 1976
- Reactive dyeing system using phosphorus acid dyes with a cyanamide compound3US 4,134,722 ABurlington Industries, Inc. · 1979