C09B 29/14
Hydroxy carboxylic acids
C09B29/14 (Hydroxy carboxylic acids) appears on 7 US grants and 4 published applications in this corpus.
Search patents in C09B- Granted patents
- 7
- Published applications
- 4
- Assignees
- 8
- Inventors
- 22
- Latest grant
- 1 Feb 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 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 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Joint compounds and plasters with a complexometric dye and methods1 Feb 2022US 11,236,234 B2United States Gypsum Company
- Light filters comprising P-nitrophenylazo salicylic acid derivatives thereof2 Jul 2013US 8,476,390 B2
- Hair dye composition26 Jan 2010US 7,651,538 B2FUJIFILM Corporation
- Method and intermediates for preparing high purity 3,3'-azo-bis-(6-hydroxy benzoic acid)9 Jul 1985US 4,528,367 APharmacia Corporation
- 2-Hydroxy-5-phenylazobenzoic acid derivatives and method of treating ulcerative colitis therewith1 Nov 1983US 4,412,992 ABiorex Laboratories Limited
- New class of disperse azo dyes, a process for the preparation thereof and the use thereof13 Aug 2026US 2026/0234404 A1Archroma (Switzerland) GmbH
- Joint compounds and plasters with a complexometric dye and methods4 Jul 2019US 2019/0203050 A1United States Gypsum Company
- Light filters comprising p-nitrophenylazo salicylic acid derivatives thereof7 Oct 2010US 2010/0256306 A1
- Hair dye composition5 Mar 2009US 2009/0056038 A1Kao Corporation
Most cited
By later US patents
- 2-Hydroxy-5-phenylazobenzoic acid derivatives and method of treating ulcerative colitis therewith84US 4,412,992 ABiorex Laboratories Limited · 1983
- Light filters comprising P-nitrophenylazo salicylic acid derivatives thereof20US 8,476,390 B22013
- Method and intermediates for preparing high purity 3,3'-azo-bis-(6-hydroxy benzoic acid)11US 4,528,367 APharmacia Corporation · 1985
- Heterocyclic phenyl azo hydroxybenzenes3US 4,219,474 AWilliam H. Rorer, Inc. · 1980
- Iron complex azo dyestuffs3US 4,256,634 ABayer Aktiengesellschaft · 1981