Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6461488 | Electrolysis appliance | Frank Mai, Henrik Colell, Manfred Becker | 2002-10-08 |
| 6441624 | Experimenting apparatus for fuel cell technology | Henrik Colell | 2002-08-27 |
| 6361894 | Fuel cell system with annular sealing assembly | Christian Leu | 2002-03-26 |