C09B 1/48
Anthrimides
C09B1/48 (Anthrimides) appears on 12 US grants and 0 published applications in this corpus.
Search patents in C09B- Granted patents
- 12
- Published applications
- 0
- Assignees
- 4
- Inventors
- 12
- Latest grant
- 20 Oct 1987
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for the preparation of anthraquinone imides20 Oct 1987US 4,701,281 ACiba-Geigy Corporation
- Process for the preparation of 1,4-diaminoanthraquinones8 Sep 1987US 4,692,278 ACiba-Geigy Corporation
- Process for the preparation of anthraquinone imides21 Apr 1987US 4,659,831 ACiba-Geigy Corporation
- Process for preparing 4,4'-dibenzoylaminodianthrimidecarbazole28 May 1985US 4,520,202 ABayer Aktiengesellschaft
- Process for the preparation of 4,4'-diamino-1,1'-dianthrimides5 Jun 1984US 4,452,742 ABayer Aktiengesellschaft
No published applications in this class yet.
Most cited
By later US patents
- Triazinyl vat dyestuffs4US 3,935,208 A1976
- Triazinyl dyes3US 3,972,881 ACiba-Geigy Corporation · 1976
- Process for the preparation of dianthraquinonylamines3US 4,382,034 ABayer Aktiengesellschaft · 1983
- Process for the preparation of 1,4-diaminoanthraquinones3US 4,692,278 ACiba-Geigy Corporation · 1987
- Process for the manufacture of vat dyes1US 4,284,770 ACiba-Geigy Corporation · 1981