Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879102 | Regeneration of wash solutions containing Fe(II) and Fe(III) chelate complexes | Klaus-Dieter Hoppe, Bernd Leutner | 1989-11-07 |
| 4676961 | Stabilized water-containing sodium dithionite formulations which have been rendered alkaline | Max Appl, Wilhelm Goesele, Jaroslav Melzer, Gert Treiber | 1987-06-30 |
| 4614647 | Stabilized sodium dithionite formulations containing inert organic liquids, and the use of these formulations | Max Appl, Gerhard D. Molin, Wilhelm Goesele, Gert Treiber | 1986-09-30 |
| 4237318 | Manufacture of aqueous methanolic solution of sodium formate | Werner Ostertag, Gerd Wunsch, Volker Kiener, Eckhard Hetzel, Bernd Leutner +2 more | 1980-12-02 |