Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6203678 | Solid electrolyte sensor for measuring gaseous anhydrides | Ulrich Guth, Hartmut Erdmann, Marianne Ilgenstein, Heidrun Koppen, Dieter Fischer | 2001-03-20 |
| 5262205 | Process for producing the ion-sensitive probe electrode of a heavy-metal-ion sensor | Hartmut Erdmann, Wing F. Chu | 1993-11-16 |
| 5260821 | Electrochromic system | Wing F. Chu, Rolf Hartmann, Gertraud Ganson, Werner Weppner | 1993-11-09 |