Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5808159 | Process and device for recovering amines and use of residues obtainable thereby | — | 1998-09-15 |
| 4970201 | Preservatives for cellulose containing products | Detlef Wehle, Helmut Hartner, Franz Konig, Helmut Berenbold | 1990-11-13 |
| 4801404 | Boric acid compositions | Wolf Dietrich, Volker Beez | 1989-01-31 |
| 4678715 | Process for improving wood and use of the improved wood | Gerhard Wilhelm | 1987-07-07 |
| 4377040 | Process for the modification of wood | Bernhard Bluhm, Arnold Alscher, Klaus Moraw, Gerd Collin, Heinzpeter Nilles | 1983-03-22 |