Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623515 | Process for producing fibrous and granular materials from waste | Josef Frei, Hans Schweri | 1986-11-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623515 | Process for producing fibrous and granular materials from waste | Josef Frei, Hans Schweri | 1986-11-18 |