Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6070733 | Treatment of waste material | — | 2000-06-06 |
| 5626664 | Waste treatment process | G unter Ritter, G unter Treutlein, Manfred Erken | 1997-05-06 |
| 5607505 | Waste treatment process | G unter Ritter, G unter Treutlein, Manfred Erken | 1997-03-04 |
| 5538552 | Waste treatment process | Gunter Ritter, Gunter Treutlein, Manfred Erken | 1996-07-23 |