C07D 249/24
With stilbene radicals directly attached in position 2
Official title: with stilbene radicals directly attached in position 2
C07D249/24 (With stilbene radicals directly attached in position 2) appears on 9 US grants and 0 published applications in this corpus.
Search patents in C07D- Granted patents
- 9
- Published applications
- 0
- Assignees
- 4
- Inventors
- 15
- Latest grant
- 12 Feb 1991
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Silver halide light-sensitive photographic material containing a novel yellow coupler12 Feb 1991US 4,992,360 AKonica Corporation
- Process for the production of 2-stilbylnaphthotriazole optical bleaches13 Dec 1988US 4,791,211 ACiba-Geigy Corporation
- Amine oxide compounds3 Sep 1985US 4,539,161 ACiba-Geigy Corporation
- Stilbene compounds13 Nov 1984US 4,482,496 ACiba-Geigy Corporation
- Novel stilbene compounds: process for their manufacture and their use as optical brighteners6 Apr 1982US 4,323,675 AHoechst Aktiengesellschaft
No published applications in this class yet.
Most cited
By later US patents
- Silver halide light-sensitive photographic material containing a novel yellow coupler14US 4,992,360 AKonica Corporation · 1991
- Amine oxide compounds6US 4,539,161 ACiba-Geigy Corporation · 1985
- Stilbene compounds5US 4,014,870 ACiba-Geigy Corporation · 1977
- Novel stilbene compounds: process for their manufacture and their use as optical brighteners5US 4,323,675 AHoechst Aktiengesellschaft · 1982
- Process for the production of 2-stilbylnaphthotriazole optical bleaches3US 4,791,211 ACiba-Geigy Corporation · 1988