Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4634060 | Processing and sorting of refuse | Heinz-Josef Skaletz, Hans Sonnenschein | 1987-01-06 |
| 4509697 | Rotary drum screen for waste material and its method of operation | Hans Sonnenschein, Heinz-Josef Skaletz | 1985-04-09 |
| 4485745 | Method for thermal processing of solid waste and the apparatus for carrying out the method | Gerd-Peter Bracker | 1984-12-04 |
| 4445906 | Process for the treatment of the combustible portion of domestic waste for briquetting and apparatus therefor | Hans Sonnenschein | 1984-05-01 |