C09B 31/053
Amino naphthalenes
C09B31/053 (Amino naphthalenes) appears on 25 US grants and 19 published applications in this corpus.
Search patents in C09B- Granted patents
- 25
- Published applications
- 19
- Assignees
- 20
- Inventors
- 73
- Latest grant
- 31 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 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 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 0 | 4 |
| 2020 | 2 | 2 |
| 2021 | 3 | 1 |
| 2022 | 1 | 3 |
| 2023 | 0 | 0 |
| 2024 | 4 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Cerium (III) carbonate formulations31 Dec 2024US 12,180,084 B2The Regents of the University of California
- Dichroic azo-azomethine dyes for liquid crystal compositions22 Oct 2024US 12,122,919 B2BASF SE
- Head-up display device19 Mar 2024US 11,933,979 B2Nitto Denko Corporation
- Colored resin particle dispersion, ink, ink set, inkjet printing method, and method of manufacturing colored resin particle dispersion12 Mar 2024US 11,926,125 B2FUJIFILM Corporation
- Cerium (III) carbonate formulations9 Aug 2022US 11,407,649 B2The Regents of the University of California
- 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
- Dichroic azo-azomethine dyes for liquid crystal compositions31 Mar 2022US 2022/0098412 A1BASF SE
- Head-up display device6 Jan 2022US 2022/0003996 A1Nitto Denko Corporation
- Colored resin particle dispersion, ink, ink set, inkjet printing method, and method of manufacturing colored resin particle dispersion13 May 2021US 2021/0138776 A1FUJIFILM Corporation
Most cited
By later US patents
- Boronic acid dyes23US 5,108,502 AHewlett-Packard Company · 1992
- Colored water immiscible organic liquid19US 4,009,008 AMorton-Norwich Products, Inc. · 1977
- Colored petroleum-derived product11US 4,049,393 AMorton-Norwich Products, Inc. · 1977
- Disazo dyestuffs6US 3,950,128 AImperial Chemical Industries PLC · 1976
- Azo dyes having a high solubility in petroleum fuels6US 4,000,985 AMorton-Norwich Products, Inc. · 1977