Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6113799 | Process for selective separation of morpholine | Heinrich Firgo, Johann Manner | 2000-09-05 |
| 5904818 | Process for the regeneration of an aqueous process liquid of the amine-oxide process | Wolfram Kalt, Dieter Eichinger, Heinrich Firgo | 1999-05-18 |
| 5858285 | Process for the production of an aqueous solution of a tertiary amine-oxide | Johann Manner, Heinrich Firgo, Eduard Mulleder, Wolfram Kalt | 1999-01-12 |
| 5773655 | Process for the purification of an aqueous solution of a tertiary amine-oxide | Eduard Mulleder, Franz Schwenninger, Johann Manner | 1998-06-30 |
| 5628941 | Process for the production of cellulose moulded bodies | Wolfram Kalt, Heinrich Firgo, Johann Manner, Eduard Mulleder, Arnold Nigsch +2 more | 1997-05-13 |