Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803118 | Marker for use in a magnetic anti-theft security system | Hartwin Weber, Ottmar Roth | 2004-10-12 |
| 6793745 | Maraging type spring steel | Hartwin Weber, Waldemar Doering | 2004-09-21 |
| 6689490 | Display element for employment in a magnetic anti-theft security system | Hartwin Weber, Ottmar Roth | 2004-02-10 |