C09B 31/061
Containing acid groups
Official title: {containing acid groups, e.g. -CO2H, -SO3H, -PO3H2, -OSO3H, -OPO2H2; Salts thereof}
C09B31/061 (Containing acid groups) appears on 6 US grants and 1 published applications in this corpus.
Search patents in C09B- Granted patents
- 6
- Published applications
- 1
- Assignees
- 4
- Inventors
- 7
- Latest grant
- 30 Jun 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 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 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Low toxicity ink formulations with improved printhead lifetime30 Jun 2020US 10,696,855 B2Memjet Technology Limited
- Monoazo and disazo colorants1 Nov 1983US 4,412,950 ASterling Drug Inc.
- Novel monoazo and disazo colorants15 Mar 1983US 4,376,729 ASterling Drug Inc.
- Stable, concentrated, aqueous compositions containing para-sulfophenyl-azo-substituted 1,4-phenylene-azo-para-2-hydroxypropoxyphenyl dyes20 Jul 1982US 4,340,385 ASandoz Ltd.
- Concentrated disazo dye-surfactant solution20 Dec 1977US 4,063,880 AE. I. Du Pont de Nemours and Company
Most cited
By later US patents
- Concentrated disazo dye-surfactant solution10US 4,063,880 AE. I. Du Pont de Nemours and Company · 1977
- Concentrated acid red 151 dye-surfactant solution of 15 to 25%8US 3,957,425 AE. I. Du Pont de Nemours and Company · 1976
- Novel monoazo and disazo colorants4US 4,376,729 ASterling Drug Inc. · 1983
- Stable, concentrated, aqueous compositions containing para-sulfophenyl-azo-substituted 1,4-phenylene-azo-para-2-hydroxypropoxyphenyl dyes3US 4,340,385 ASandoz Ltd. · 1982
- Monoazo and disazo colorants2US 4,412,950 ASterling Drug Inc. · 1983