Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6262219 | Method for producing polycarbonate | Annett Konig, Uwe Hucks, Claus-Ludolf Schultz | 2001-07-17 |
| 6175017 | Process for the production of aryl carbonates | Hans-Josef Buysch, Norbert Schon | 2001-01-16 |
| 5734004 | Process for the purification of carbonic acid diaryl ester | Steffen Kuhling, Kaspar Hallenberger, Pieter Ooms, Hans-Josef Buysch | 1998-03-31 |
| 4319053 | Process for the preparation of 4,4'-dihydroxy-3,3',5,5'-tetraalkyl-diphenylalkanes | Jürgen Heuser, Hans-Helmut Schwarz, Gerhard Friedhofen | 1982-03-09 |