| Anmelder |
Datum |
Patentnummer |
Cluster |
| Celanese Corporation (New York, NY) |
1982-12-17 | 4448687.txt | cluster_25 |
| Celanese Corporation (New York, NY) |
1982-12-17 | 4512894.txt | cluster_25 |
| Hoechst Celanese Corp. (Somerville, NJ) |
1985-04-15 | 4933083.txt | cluster_25 |