Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8896501 | Security element for the identification of a security document using liquid crystal display driven with piezoelectric energy source and method for producing it | Rainer Stahl, Steffen Weiss, Klaus Ludwig, Johannes Schad | 2014-11-25 |