Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8078878 | Securing documents with electronic signatures | — | 2011-12-13 |
| 7908248 | Dynamic meta data | Frank Brunswig, Johannes Viegener | 2011-03-15 |
| 7890762 | Differentiated proxy digital signatures | Theo Verlaan | 2011-02-15 |