Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6047888 | Method system and portable data medium for paying for purchases | — | 2000-04-11 |
| 6049788 | System with portable terminal and data media connectable therewith | — | 2000-04-11 |
| 6000606 | Method and system for securing and restoring data of a portable chip-card if lost or stolen | — | 1999-12-14 |
| 5902981 | Method and system for securing and restoring data of a portable chip-card if lost or stolen | — | 1999-05-11 |
| 5811771 | Method and system for paying with a portable data medium having security against over charging and unauthorized use | — | 1998-09-22 |
| 4968873 | Smart card issuing and receiving apparatus | Christian Hinneberg | 1990-11-06 |
| 4837422 | Multi-user card system | Christian Hinneberg | 1989-06-06 |
| 4833607 | Apparatus and method to control economical systems | Christian Hinneberg | 1989-05-23 |