C09B 31/025
Containing acid groups
Official title: {containing acid groups, e.g. -COOH, -SO3H, -PO3H2, -OSO3H, -OPO2H2; Salts thereof}
C09B31/025 (Containing acid groups) appears on 40 US grants and 17 published applications in this corpus.
Search patents in C09B- Granted patents
- 40
- Published applications
- 17
- Assignees
- 20
- Inventors
- 82
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 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 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 4 | 4 |
| 2014 | 1 | 1 |
| 2015 | 2 | 2 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 0 | 1 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Bis-Azo colorants for use as bluing agents12 Apr 2022US 11,299,635 B2Milliken & Company
- Reaction accelerating agent28 Dec 2021US 11,208,675 B2Kikkoman Corporation
- Low toxicity ink formulations with improved printhead lifetime30 Jun 2020US 10,696,855 B2Memjet Technology Limited
- Water-resistant organic thin-film, method for producing water-resistant organic thin-film, and image display device including water-resistant organic thin-film24 Mar 2020US 10,598,829 B2Nitto Denko Corporation
- Chiral Azobenzene Dopants with Increased Delta Helical Twisting Power6 Feb 2025US 2025/0043185 A1Nissan North America, Inc.
- Ink set, ink cartridge, ink jet printer, and ink jet recording method9 Jul 2020US 2020/0216701 A1FUJIFILM Corporation
- Ink set, ink cartridge, ink jet printer, and ink jet recording method9 Jul 2020US 2020/0216702 A1FUJIFILM Corporation
- Reaction accelerating agent3 Oct 2019US 2019/0300929 A1Kikkoman Corporation
- Low toxicity ink formulations with improved printhead lifetime18 Oct 2018US 2018/0298218 A1Memjet Technology Limited
Most cited
By later US patents
- 1:2-chromium complex dyes for tanned leather18US 4,820,309 ASandoz Ltd. · 1989
- Triazole-group-containing disazo reactive dyestuff14US 4,556,707 ABayer Aktiengesellschaft · 1985
- Disazo dyestuffs containing a thiazole central component11US 4,124,581 ABayer Aktiengesellschaft · 1978
- Acid disazo dyestuffs containing a substituted thiophene middle component11US 4,180,503 ABayer Aktiengesellschaft · 1979
- Azo dyes containing a thiazole component11US 4,207,233 ABASF SE · 1980