C09B 3/32
By halogenation
Official title: by halogenation
C09B3/32 (By halogenation) appears on 4 US grants and 1 published applications in this corpus.
Search patents in C09B- Granted patents
- 4
- Published applications
- 1
- Assignees
- 2
- Inventors
- 6
- Latest grant
- 26 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 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 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 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 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for chlorinating blue anthrone, violanthrone or isoviolantrone26 Mar 2024US 11,939,475 B2
- Preparation of chlorinated violanthrones or isoviolanthrones10 Sep 1996US 5,554,774 ABASF SE
- Process for the preparation of vat dyes from brominated dibenzanthrone and 1-aminoanthraquinone25 Jul 1989US 4,851,157 ACiba-Geigy Corporation
- Vat dyes obtainable by bromination of dibenzanthrone and reaction with 1-aminoanthraquinone15 Oct 1985US 4,547,575 ACiba-Geigy Corporation
Most cited
By later US patents