Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5262493 | Blow-moldable copolyethenimide kister compositions salts of aliphatic polycarboxylic acid | John A. Tyrell | 1993-11-16 |
| 5254640 | Copolyetherimide ester compositions | John A. Tyrell | 1993-10-19 |
| 5026790 | Polyester compositions exhibiting enhanced melt viscosity | John A. Tyrell | 1991-06-25 |