Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6625563 | Gain factor and position determination system | Stefan Kirsch, Hans R. Schild | 2003-09-23 |
| 6553326 | Errors in systems using magnetic fields to locate objects | Stefan Kirsch | 2003-04-22 |