C09B 43/14
With phosgene or thiophosgene
Official title: with phosgene or thiophosgene
C09B43/14 (With phosgene or thiophosgene) appears on 8 US grants and 0 published applications in this corpus.
Search patents in C09B- Granted patents
- 8
- Published applications
- 0
- Assignees
- 7
- Inventors
- 18
- Latest grant
- 13 Oct 1987
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for the preparation of a water soluble direct green polyazo dyestuffs mixture in situ and water soluble direct green polyazo dyestuffs mixture obtained thereby13 Oct 1987US 4,699,628 AThe Atul Products Limited
- Ureylenebis (hydroxy naphthalenesulfonic acids)5 Jul 1983US 4,391,824 AAmerican Cyanamid Company
- Process for the preparation of water-soluble dyestuffs with a low salt content20 Jul 1982US 4,340,389 ABayer Aktiengesellschaft
- Process for producing colored paper using granulated dye compositions15 Apr 1980US 4,198,268 ASandoz Ltd.
- Concentrated aqueous dye compositions containing a low molecular weight amide17 Apr 1979US 4,149,851 AFidelity Union Trust Company, Executive Trustee Under the Sandoz Trust
No published applications in this class yet.
Most cited
By later US patents
- Process for the preparation of water-soluble dyestuffs with a low salt content9US 4,340,389 ABayer Aktiengesellschaft · 1982
- Concentrated aqueous dye compositions containing a low molecular weight amide5US 4,149,851 AFidelity Union Trust Company, Executive Trustee Under the Sandoz Trust · 1979
- Process for producing colored paper using granulated dye compositions5US 4,198,268 ASandoz Ltd. · 1980
- Concentrated aqueous dye compositions containing a low molecular weight amide and their use for dyeing paper4US 4,023,924 ASandoz Ltd. · 1977
- Process for the preparation of concentrated solutions of urea compounds3US 4,077,767 ABayer Aktiengesellschaft · 1978