Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5159107 | Continuous preparation of alkyl pentenoates | Heinrich Reitz, Gunter Schuch, Wilfried Seyfert | 1992-10-27 |
| 4894474 | Preparation of alkyl pentenoates | Robert Maerkl, Werner Bertleff, Hans J. Wilfinger, Gunter Schuch, Wolfgang Harder +1 more | 1990-01-16 |
| 4810798 | Recovery of pyridine or methylpyridines or mixtures thereof from methyl butanedicarboxylate containing reaction mixtures | Hubert Lendle, Wilfried Seyfert, Peter Stops | 1989-03-07 |
| 4777284 | Continuous preparation of carbalkoxy-containing aliphatic compounds | Robert Maerkl, Werner Bertleff, Gebhard Kuehn, Peter Stops, Rudolf Kummer +1 more | 1988-10-11 |
| 4586987 | Obtaining C.sub.1 -C.sub.4 -alkyl pentenoates by distillation | Heinz-Walter Schneider, Rudolf Kummer, Otto Leman | 1986-05-06 |