Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5391266 | Method of regulating the throughput in the electrochemical regeneration of chromosulfuric acid | Hans Herbst | 1995-02-21 |
| 5045162 | Process for electrochemically regenerating chromosulfuric acid | Hans Herbst, Siegfried Benninger | 1991-09-03 |
| 4396586 | Process for making long-chain ammonium polyphosphate | Alexander Maurer, Gero Heymer | 1983-08-02 |