Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474558 | Data carrier for operation with and without contacts | — | 2002-11-05 |
| 6407938 | Circuit configuration having a multi-state switching device and an energy discharge device connected to a temporary energy storage device in a third switching state of the switching device | Michael Smola, Herbert Palm | 2002-06-18 |