Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818111 | Measurement sensor for determining an oxygen concentration in a gas mixture | Martin Lenfers, Johann Riegel, Lothar Diehl | 2004-11-16 |
| 6811664 | Electrochemical sensor element | Martin Lenfers, Harry Braun, Lothar Diehl | 2004-11-02 |