Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6491324 | Safety document | Christian Schmitz | 2002-12-10 |
| 6474695 | Security element in the form of a thread or be embedded in security and methods of producing it | Walter Schneider | 2002-11-05 |
| 6343745 | Security device | Michael Bohm, Christian Schmitz | 2002-02-05 |