Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6565007 | Chip card with an electronic blocking function | — | 2003-05-20 |
| 6398116 | Chip card with at least two coil devices for transferring data and/or energy | — | 2002-06-04 |
| 6098890 | Method and device for adapting a chip card to different card terminals | Michael Jenning, Ingo Bade, Jurgen Wesenberg | 2000-08-08 |
| 6068193 | Process for exchanging energy and data between a read/write terminal and a chip card with contactless connections and/or contact connections as well as a device for this purpose | — | 2000-05-30 |
| 6008993 | Chip card with chip support element and coil support element | — | 1999-12-28 |
| 5984181 | Process and device for dispensing individual chip cards | — | 1999-11-16 |
| 5847372 | Chip card | — | 1998-12-08 |
| 5773812 | Chip card capable of both contact and contactless operation including a contact block | — | 1998-06-30 |
| 5648761 | Card with inhibit given remote interrogation | Holger Mackenthun, Michael Iloff | 1997-07-15 |
| 5619683 | Reference international card harmonization coupler | — | 1997-04-08 |
| 5473323 | Apparatus for contactless energy and data transmission for single coil and two-coil systems | — | 1995-12-05 |
| 5442295 | Method and apparatus for indicating the improper termination of a chip card communication | — | 1995-08-15 |
| 5376778 | Contact-free chip card for remote transmission | — | 1994-12-27 |
| 5288979 | Method for activating a data carrier having an inactive chip bonded to the data carrier for activating the data carrier | — | 1994-02-22 |
| 4928087 | Phase-stabilized, phase-coupled resonant circuit | Holger Mackenthun, Wolfgang Hass | 1990-05-22 |
| 4796028 | Apparatus for bidirectional data transmission | Holger Mackenthun | 1989-01-03 |
| 4698996 | Method for calibrating an electronic position transmitter | Michael Jenning, Holger Mackenthun, Thorten Baik, Thomas Niznik | 1987-10-13 |