C09B 43/24
With formation of —o—so2—r or —o—so3h radicals
Official title: with formation of —O—SO2—R or —O—SO3H radicals
C09B43/24 (With formation of —o—so2—r or —o—so3h radicals) appears on 12 US grants and 1 published applications in this corpus.
Search patents in C09B- Granted patents
- 12
- Published applications
- 1
- Assignees
- 9
- Inventors
- 19
- Latest grant
- 30 Mar 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 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 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Monoazo dyes30 Mar 2010US 7,686,852 B2Clariant Finance (BVI) Limited
- Method and intermediates for preparing high purity 3,3'-azo-bis-(6-hydroxy benzoic acid)9 Jul 1985US 4,528,367 APharmacia Corporation
- Recording liquid5 Jul 1983US 4,391,639 ACanon Kabushiki Kaisha
- Disazo dyestuff sulphuric acid ester27 Jan 1981US 4,247,460 ABayer Aktiengesellschaft
- Substituted 3-carbalkoxy 4-alkylamino-azobenzene compound as disperse dyestuffs for synthetic fibers18 Nov 1980US 4,234,482 AProduits Chimiques Ugine Kuhlmann Service Propriete Industrielle
Most cited
By later US patents
- Method and intermediates for preparing high purity 3,3'-azo-bis-(6-hydroxy benzoic acid)11US 4,528,367 APharmacia Corporation · 1985
- Recording liquid8US 4,391,639 ACanon Kabushiki Kaisha · 1983
- Sulfo phenyl-azo-sulro phenyl-azo-alkoxy-diphenyl compounds7US 3,932,376 ACrompton & Knowles Corporation · 1976
- Water-soluble phenylazoaminonaphthol sulphonic acid dyestuffs5US 4,218,373 ABayer Aktiengesellschaft · 1980
- Dyeing of cellulose-containing textile material and novel dyes for use therein4US 4,231,746 ABASF SE · 1980