Issued Patents 1994
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5317083 | Process for isolating polycarbonates from their solutions with tube having cross sectional contrictions | Dieter Freitag, Wolfgang Alewelt, Hermann Kauth | 1994-05-31 |
| RE34626 | Isomerization of bisphenols | Udo Rudolph | 1994-05-31 |
| 5302774 | Process for the production of bisphenols | Klaus Berg, Hans-Josef Buysch, Alfred Eitel, Gerhard Fennhoff, Otto Immel +2 more | 1994-04-12 |
| 5300700 | Process for the production of high-purity bisphenol A | Georg Malamet, Hans-Peter Wirges, Alfred Eitel | 1994-04-05 |
| 5300550 | Thermoplastic molding compositions | Thomas Eckel, Dieter Wittmann, Karl-Heinz Ott, Dieter Freitag | 1994-04-05 |
| 5284981 | Ion exchangers modified with mercapto amines | Udo Rudolph, Norbert Bachem | 1994-02-08 |
| 5275758 | Production of ultrafine suspensions of bisphenol, sodium hydroxide and water | Reinhard Schomacker, Jurgen Kadelka, Jürgen Heuser, Gunther Weymans, Konrad Hable | 1994-01-04 |