G03C 7/3231
Couplers containing an indazolone ring
Official title: {Couplers containing an indazolone ring}
G03C7/3231 (Couplers containing an indazolone ring) appears on 3 US grants and 0 published applications in this corpus.
Search patents in G03C- Granted patents
- 3
- Published applications
- 0
- Assignees
- 2
- Inventors
- 8
- Latest grant
- 7 May 1996
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 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 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
No published applications in this class yet.
Most cited
By later US patents