Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6037381 | Preparation of polytetrahydrofuran with terminal hydroxyl groups using ion exchangers | Wulfrich Friedemann Beer, Jurgen Ciprian, Lothar Franz, Wolfgang Franzischka, Christof Palm +4 more | 2000-03-14 |
| 5981688 | Continuous preparation of polytetrahydrofuran by a transesterification cascade with specific destruction of foam | Heinz Auer, Jurgen Ciprian, Lothar Franz, Wolfgang Franzischka, Ulrich-Dieter Pessel +1 more | 1999-11-09 |