Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6126078 | Identification medium with passive electronic data carrier storing a plurality of independent applications | Ulrich Graf | 2000-10-03 |
| 5844244 | Portable identification carrier | Ulrich Graf | 1998-12-01 |
| 5418525 | Person identification system | Alexandra S. Frei, Carlo Haechler | 1995-05-23 |