C09B 27/00
Preparations in which the azo group is formed in any way other
Official title: Preparations in which the azo group is formed in any way other than by diazotising and coupling, {e.g. oxidation}
C09B27/00 (Preparations in which the azo group is formed in any way other) appears on 46 US grants and 12 published applications in this corpus.
Search patents in C09B- Granted patents
- 46
- Published applications
- 12
- Assignees
- 28
- Inventors
- 94
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 3 |
| 2006 | 4 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Adhesive film that can be wound and stamped31 Mar 2026US 12,590,230 B2Lohmann GmbH & Co. KG
- Compound, tautomer of compound or salt of compound or tautomer, method for producing same, coloring composition, dyeing method, and dyed article4 Mar 2025US 12,240,842 B2FUJIFILM Corporation
- Symmetrical diazo compounds comprising 4-pyridinium groups and a cationic or non-cationic linker, compositions comprising them, method for coloring, and device8 Jul 2008US 7,396,368 B2L'oreal
- Mono- and bis-hydrazone pigments20 Mar 2007US 7,193,067 B2
- Mono- and bis-hydrazone pigments12 Dec 2006US 7,148,335 B2Sun Chemical Corporation
- Compound, tautomer of compound or salt of compound or tautomer, method for producing same, coloring composition, dyeing method, and dyed article3 Aug 2023US 2023/0242523 A1FUJIFILM Corporation
- Adhesive film that can be wound and stamped3 Mar 2022US 2022/0064499 A1Lohmann GmbH & Co. KG
- Azo dyes11 Feb 2010US 2010/0031452 A1Université Catholique De Louvain
- Magenta Dyes and Their Use in Ink-Jet Printing23 Apr 2009US 2009/0104417 A1Fujifilm Imaging Colorants Limited
- Dyes and their use in ink-jet printing2 Oct 2008US 2008/0241394 A1Fujifilm Imaging Colorants Limited
Most cited
By later US patents
- 8-(anilino)-1-naphthalenesulfonate analogs148US 6,218,571 B1LifeScan, Inc. · 2001
- Derivatives of azobarbituric acid or salts or complexes thereof27US 4,628,082 ABayer Aktiengesellschaft · 1986
- Photographic recording material with metal complexable, heterocyclic azo dye20US 4,396,710 AAfga-Gevaert Aktiengesellschaft · 1983
- Inclusion compounds, intercalation compounds, and solid solutions of colored organic metal compounds which contains a nickel salt or nickel complex of an azobarbituric acid or its tautomer20US 4,622,391 ABayer Aktiengesellschaft · 1986
- Quaternary basic azodyestuffs containing a propenyl amino radical11US 4,082,740 AHoechst Aktiengesellschaft · 1978