C09B 29/0007
Containing acid groups
Official title: {containing acid groups, e.g. CO2H, SO3H, PO3H2, OSO3H, OPO2H2; Salts thereof}
C09B29/0007 (Containing acid groups) appears on 79 US grants and 40 published applications in this corpus.
Search patents in C09B- Granted patents
- 79
- Published applications
- 40
- Assignees
- 51
- Inventors
- 212
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 2 |
| 2003 | 1 | 1 |
| 2004 | 4 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 5 |
| 2010 | 0 | 3 |
| 2011 | 5 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 2 |
| 2014 | 1 | 3 |
| 2015 | 4 | 6 |
| 2016 | 5 | 3 |
| 2017 | 3 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Azo pigment, ink, paint, colorant for plastics, colored molded article, colorant for stationery and writing materials, printing agent, toner, dispersion and resist for color filters, and cosmetic material21 Apr 2026US 12,606,717 B2DIC Corporation
- Optical sheet and optical component14 Oct 2025US 12,442,954 B2Sumitomo Bakelite Co., Ltd.
- Organic ammonium salts with traceability and detergent dispersant properties to liquid fuels and processes for their synthesis23 Sep 2025US 12,421,186 B2Instituto Mexicano Del Petroleo
- Disperse azo dyes, a process for the preparation thereof and the use thereof2 Apr 2024US 11,946,198 B2Huntsman Textile Effects (Switzerland) GmbH
- Disperse azo dyes, a process for the preparation thereof and the use thereof17 Jul 2018US 10,023,742 B2Huntsman International LLC
- Organic ammonium salts with traceability and detergent dispersant properties to liquid fuels and processes for their synthesis30 Oct 2025US 2025/0333374 A1Instituto Mexicano Del Petroleo
- Organic ammonium salts with traceability and detergent dispersant properties to liquid fuels and processes for their synthesis13 Jun 2024US 2024/0190812 A1Instituto Mexicano Del Petroleo
- Azo pigment, ink, paint, colorant for plastics, colored molded article, colorant for stationery and writing materials, printing agent, toner, dispersion and resist for color filters, and cosmetic material14 Mar 2024US 2024/0084155 A1DIC Corporation
- Disperse azo dyes, a process for the preparation thereof and the use thereof16 Mar 2023US 2023/0082859 A1Huntsman Advanced Materials (Switzerland) GmbH
- Optical sheet and optical component12 Jan 2023US 2023/0011467 A1Sumitomo Bakelite Co., Ltd.
Most cited
By later US patents
- Pigment compositions29US 5,669,967 AEngelhard Corporation · 1997
- Boronic acid dyes23US 5,108,502 AHewlett-Packard Company · 1992
- Method for preparing light-absorbing polymeric compositions23US 6,197,223 B1Eastman Chemical Company · 2001
- Composite pigments and process for their preparation21US 4,486,237 AMontefluous S.p.A. · 1984
- Azo dyes from aniline having 1 or 2 sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl)carbamoyl groups on its ring17US 4,301,071 AEastman Kodak Company · 1981