C09B 31/057
Containing acid groups
Official title: containing acid groups, e.g. —CO2H, —SO3H, —PO3H2, —OSO3H, —OPO2H2; Salts thereof
C09B31/057 (Containing acid groups) appears on 10 US grants and 10 published applications in this corpus.
Search patents in C09B- Granted patents
- 10
- Published applications
- 10
- Assignees
- 11
- Inventors
- 30
- Latest grant
- 31 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 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 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 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 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 0 | 0 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Cerium (III) carbonate formulations31 Dec 2024US 12,180,084 B2The Regents of the University of California
- Head-up display device19 Mar 2024US 11,933,979 B2Nitto Denko Corporation
- Cerium (III) carbonate formulations9 Aug 2022US 11,407,649 B2The Regents of the University of California
- Liquid-crystalline coating fluid and polarizing film26 Nov 2013US 8,591,644 B2Nitto Denko Corporation
- Dyes and blends for shading during laundry19 Nov 2013US 8,585,780 B2BASF SE
- Cerium (iii) carbonate formulations13 Mar 2025US 2025/0083971 A1The Regents of the University of California
- Cerium (iii) carbonate formulations7 Jul 2022US 2022/0212946 A1The Regents of the University of California
- Head-up display device6 Jan 2022US 2022/0003996 A1Nitto Denko Corporation
- Cerium (iii) carbonate formulations29 Oct 2020US 2020/0339435 A1The Regents of the University of California
- Azo Compound Or Salt Thereof, And Polarizing Film Containing Same14 Feb 2019US 2019/0048194 A1Nippon Kayaku Kabushiki Kaisha
Most cited
By later US patents
- Boronic acid dyes23US 5,108,502 AHewlett-Packard Company · 1992
- Disazo dyestuffs6US 3,950,128 AImperial Chemical Industries PLC · 1976
- Mixtures of reactive dyes and their use in a method for trichromatic dyeing or printing2US 7,604,669 B2Huntsman International LLC · 2009
- Liquid-crystalline coating fluid and polarizing film2US 8,591,644 B2Nitto Denko Corporation · 2013
- Dyes and blends for shading during laundry1US 8,585,780 B2BASF SE · 2013