Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5270131 | Module for a fuel cell battery | Roland Diethelm, Joseph Brun | 1993-12-14 |
| 5264300 | Centrally symmetrical fuel cell battery | Roland Diethelm | 1993-11-23 |
| 5116696 | Gas and air feed member for a feed cell battery and a fuel cell battery | — | 1992-05-26 |