Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4456182 | Pulp grinder with liquid retention | Richard Suttinger, Hans-Otto Henrich, Theodor Bahr, Helmut Thumm | 1984-06-26 |
| 4351486 | Process and a grinding stone for preparing mechanical wood pulp | Karl-Heinz Schmoller, Theodor Bahr, Hans-Otto Henrich, Helmut Thumm, Heinz Beck | 1982-09-28 |