Company Filing History:

4 out of 16,338

E.i. Dupont De Nemours and Company

patents

Years Active: 1991-1995

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5442031 - Polyimides from oxydiphthalic anhydride and 2,4-diaminotoluene (1995-08-15),

2. 5140096 - Polymer preparation from diacylbis-lactam to avoid crystal formation (1992-08-18),

3. 5136016 - Melt-processible aromatic polyamide from N,N'-isophthaloyl bis lactam (1992-08-04),

4. 5066445 - Recovery and melt extrusion of aromatic/aliphatic copolyamides from (1991-11-19),

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Location History:

Company Filing History:

Years Active: 1991-1995