Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698084 | Electro-chemical measuring sensor | Romuald Fries, Peter Jansing | 1997-12-16 |
| 5670032 | Electro-chemical measuring sensor with a potential-free sensor element and method for producing it | Karl-Hermann Friese, Siegfried Nees, Hans-Martin Wiedenmann | 1997-09-23 |
| 5662786 | Electrochemical sensor | Karl-Hermann Friese, Werner Wieland, Hans-Martin Wiedenmann | 1997-09-02 |