Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692173 | Process for cleaning filter elements | — | 1987-09-08 |
| 4557818 | Gas-evolving metal electrode | Dieter Schlaefer, Hugo Boehn, Knut Bittler, Heinz Kilthau | 1985-12-10 |
| 4422921 | Bipolar electrodes with graphite as the carrier and their production | Hugo Boehn, Knut Bittler, Dieter Schlaefer | 1983-12-27 |
| 4411746 | Preparation of alkyl-substituted benzaldehydes | Dieter Degner, Heinz Hannebaum | 1983-10-25 |
| 4411761 | Spinel-containing electrode and process for its production | Hugo Boehn, Knut Bittler, Volker Kiener, Gerd Wunsch | 1983-10-25 |