Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351486 | Process and a grinding stone for preparing mechanical wood pulp | Karl-Heinz Schmoller, Theodor Bahr, Ernst Bottger, Hans-Otto Henrich, Helmut Thumm | 1982-09-28 |
| 4334038 | Shaping of plastic materials containing polymeric lubricant | Karl-Heinz Frassek, Egenius A. Giezen, Eduard M. Verhulst | 1982-06-08 |
| 4332600 | Method for making silica fibers | Arno Wegerhoff, Hans Zengel, Walter Brodowski, Ernst Seeberger, Gerhard Steenken +1 more | 1982-06-01 |
| 4332601 | Method for making silica fibers | Arno Wegerhoff, Hans Zengel, Walter Brodowski, Ernst Seeberger, Gerhard Steenken +1 more | 1982-06-01 |