Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4511722 | Process for preparing cyclic N-vinylacylamines | Hans-Josef Buysch, Peter M. Lange, Reinhold Klipper | 1985-04-16 |
| 4501905 | Cyclic carbonic acid derivatives | Hans-Josef Buysch | 1985-02-26 |
| 4440937 | Cyclic carbonic acid derivatives | Hans-Josef Buysch | 1984-04-03 |
| 4434105 | Process for the preparation of dialkyl carbonates | Hans-Josef Buysch, Hans Rudolph | 1984-02-28 |
| 4431795 | Copolymers of cyclic carbonic acid esters and lactams and their production | Hans-Josef Buysch, Artur Botta | 1984-02-14 |
| 4381404 | Process for the production of N,O-disubstituted urethanes and use thereof as starting materials for the production of organic isocyanates | Hans-Josef Buysch, Wolfgang Richter | 1983-04-26 |
| 4377670 | Copolymers based on aliphatic polycarbonates and lactams | Hans-Josef Buysch, Artur Botta | 1983-03-22 |
| 4335051 | Process for the preparation of dimethyl carbonate | Hans-Josef Buysch, Siegfried Bohm | 1982-06-15 |
| 4330665 | Process for the preparation of aromatic polycarbonates | Hans-Josef Buysch, Hans Rudolph | 1982-05-18 |
| 4307032 | Process for the preparation of dialkyl carbonates | Hans-Josef Buysch, Hans Rudolph | 1981-12-22 |
| 4252737 | Process for the production of aromatic carbonic acid esters | Hans-Josef Buysch, Hans Rudolph | 1981-02-24 |
| 4181676 | Process for the preparation of dialkyl carbonates | Hans-Josef Buysch, Hans Rudolph | 1980-01-01 |