Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9389265 | Method and apparatus for reducing interference in electrical locating of a buried cable sheathing fault | Marco Stephan, Rainer Purschwitz | 2016-07-12 |
| 8810254 | Arrangement for eliminating interference from acoustic signals in a ground-borne sound locating process | Marco Stephan | 2014-08-19 |
| 8474320 | Method and apparatus for locating cable faults | Ulrich Kordon, Steffen Kuerbis, Matthias Wolff, Marco Stephan, Torsten Berth | 2013-07-02 |