Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7926088 | Method for managing data records with person-related contents by means of a computer system | Thomas Birkhoelzer, Frank Krickhahn | 2011-04-12 |
| 7689829 | Method for the encryption and decryption of data by various users | Thomas Birkhoelzer, Frank Krickhahn | 2010-03-30 |
| 7540032 | User objects for authenticating the use of electronic data | Thomas Birkhoelzer, Frank Krickhahn | 2009-05-26 |