Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5357028 | Method of preparing polycarbonates and polyester carbonates | Gerhard Fennhoff, Werner Struver, Jurgen Kirsch | 1994-10-18 |
| 5302774 | Process for the production of bisphenols | Klaus Berg, Hans-Josef Buysch, Alfred Eitel, Gerhard Fennhoff, Otto Immel +2 more | 1994-04-12 |