Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880446 | Process for heating up moist gases containing hydrogen halides | Rudolf Gerken, Gunter Lailach, Peter Clasen | 1989-11-14 |
| 4859295 | Method for the precipitation of mercury by electrolysis | Freidel Kuhn | 1989-08-22 |
| 4806224 | Electrolytic process | Dieter Bruun, Klaus Muller, Conrad Reynvaan | 1989-02-21 |
| 4803027 | Process for the production of biaxially stretched films and apparatus for implementation of the process | Herbert Peiffer, Guenther Crass, Gunter Schloegl | 1989-02-07 |