Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4672104 | Two stage polybenzimidazole process and product | — | 1987-06-09 |
| 4588808 | Two-stage process and product for producing polybenzimidazoles from free dicarboxylic acids | — | 1986-05-13 |
| 4506068 | Two stage high molecular weight polybenzimidazole production with phosphorus containing catalyst | Eui W. Choe, Anthony B. Conciatori | 1985-03-19 |
| 4463167 | Two stage high molecular weight polybenzimidazole production with phosphorus containing catalyst | Eui W. Choe, Anthony B. Conciatori | 1984-07-31 |