Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330666 | Method for making polyetherimides | Dwain M. White | 1982-05-18 |
| 4324883 | Method for making polyetherimide using a phenolic or carboxylic acid catalyst | Dwain M. White | 1982-04-13 |
| 4324884 | Organic amine catalyzed method for making polyetherimide | Dwain M. White | 1982-04-13 |
| 4324885 | Quaternary Group VA salt catalyzed method for making polyetherimide | Dwain M. White | 1982-04-13 |