Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7550736 | Methods and apparatuses for checking the authenticity of sheet material | Hans-Uwe Richter | 2009-06-23 |
| 7378665 | Methods and devices for verifying the authenticity of sheet-type products | Hans-Uwe Richter | 2008-05-27 |