Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10648808 | Optoelectronic measuring device with magnetic compass and compensation functionality | — | 2020-05-12 |
| 10502560 | Optoelectronic measuring device having magnetic compass and compensation functionality | Ivo Annen | 2019-12-10 |
| 10422640 | Digital magnetic compass compensation | Ivo Annen | 2019-09-24 |
| 9918044 | Handheld observation device comprising a digital magnetic compass | Holger Kirschner | 2018-03-13 |
| 8826550 | Geographically north-referenced azimuth determination | — | 2014-09-09 |
| 7325320 | Method for estimating the accuracy of azimuthal orientations and portable sighting device | Jurg Gees | 2008-02-05 |
| 6336081 | Geomagnetic field direction measuring system | Ernst Ramseier | 2002-01-01 |
| 6009629 | Process for determining the direction of the earth's magnetic field | Juerg Weilenmann | 2000-01-04 |
| 5995913 | Method of stabilizing the horizon of magnetic compasses | Frank Dittrich, Peter Nachbaur | 1999-11-30 |
| 5946813 | Method and device for determining correction parameters | Peter Nachbaur, Frank Dittrich | 1999-09-07 |