C09B 43/02
Preparation of azo dyes from other azo compounds: by sulfonation
Official title: by sulfonation
C09B43/02 (Preparation of azo dyes from other azo compounds: by sulfonation) appears on 2 US grants and 0 published applications in this corpus.
Search patents in C09B- Granted patents
- 2
- Published applications
- 0
- Assignees
- 2
- Inventors
- 5
- Latest grant
- 10 Oct 1978
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| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
By publication year. Applications have been published since 2001.
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