Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880899 | Cyclic polyphenylene ether-polycarbonate oligomers | Joseph Guiles | 1989-11-14 |
| 4868279 | Spiro(bis) indane copolyamide and preparation thereof | Sharon J. McCormick, Alice M. Colley, Joseph Guiles | 1989-09-19 |
| 4837298 | Cyclic imides from spirobiindane diamines and methods of preparation | James Anthony Cella | 1989-06-06 |
| 4814496 | Spiro(bis)indane bis(carboxyphenyl ethers) and derivatives thereof | Sharon J. McCormick | 1989-03-21 |
| 4808754 | Spirobiindane bis-aminophenoxy ethers | Joseph Guiles, Sharon J. McCormick | 1989-02-28 |