C09B 35/463
D being derived from diaminodiphenyl
Official title: {D being derived from diaminodiphenyl}
C09B35/463 (D being derived from diaminodiphenyl) 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
- 3
- Latest grant
- 5 May 1981
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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Most cited
By later US patents