Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331614 | Aromatic polyphosphonates and a process for their production | Manfred Schmidt, Ludwig Bottenbruch, Dieter Freitag, Klaus Reinking, Hans-Dieter Block | 1982-05-25 |
| 4328174 | Aromatic polyester phosphonates | Manfred Schmidt, Dieter Freitag, Ludwig Bottenbruch, Klaus Reinking, Harald Medem | 1982-05-04 |