Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6171867 | Piezoelectric gas sensor | Andreas Schleicher, Georg Frank | 2001-01-09 |
| 5958787 | Polymer sensor | Axel Schonfeld, Andreas Schleicher, Georg Frank, Heinz H. Rieger | 1999-09-28 |
| 5866798 | Crystal oscillator sensor | Axel Schonfeld, George J. Frank | 1999-02-02 |