Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8006898 | Method for verifying the authenticity of documents | Helmut Karl Reinisch, Lukas Löffler | 2011-08-30 |
| 7552864 | Method for verifying the authenticity of documents | Lukas Löffler, Helmut Karl Reinisch | 2009-06-30 |
| 4446735 | Method of testing the weight per unit area of thin material | — | 1984-05-08 |