Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4383887 | Process and apparatus for the concentration of an alkaline solution | Hans Kuhnlein, Hans R. Kung | 1983-05-17 |
| 4357206 | Process and apparatus for the concentration of an alkaline solution | Hans Kuhnlein, Hans R. Kung | 1982-11-02 |