Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8444815 | Pulp comprising polypyridobisimidazole and other polymers and methods of making same | Achim Amma | 2013-05-21 |
| 8137506 | Paper comprising PIPD pulp and process for making same | Edmund A. Merriman, Achim Amma, Mikhail R. Levit | 2012-03-20 |
| 7727358 | Pulp comprising polypyridobisimidazole and other polymers and methods of making same | Achim Amma | 2010-06-01 |