Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6973203 | Transaction method and suitable device therefor | Rudolf Ritter | 2005-12-06 |
| 6959450 | Transmission and display of video data | Rudolf Ritter | 2005-10-25 |
| 6934689 | Payment transaction method and payment transaction system | Rudolf Ritter | 2005-08-23 |
| 6880761 | Method for loading data onto chip cards and devices adapted thereto | Rudolf Ritter | 2005-04-19 |