Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10448500 | HF combiner for a mobile radio site, HF combiner arrangement having two HF combiners for a mobile radio site, and such a mobile radio site | Kai Müller, Joao Altenir Lopes | 2019-10-15 |
| 8948347 | Method and device for checking the connection of a positive supply voltage to a subscriber access line comprising a plurality of wires | Heike Diegel, Rudolf Dollinger, Roland Krimmer | 2015-02-03 |
| 8107615 | Method and device for checking the function for inverting the polarity on a subscriber line comprising a plurality of wires | Heike Diegel, Rudolf Dollinger, Roland Krimmer | 2012-01-31 |
| 7742267 | Circuit arrangement and method for detecting the state of a circuit protection element | — | 2010-06-22 |
| 6137667 | Circuit and method for triggering an over-voltage protection unit | Roland Krimmer, Ludwig Dirscherl | 2000-10-24 |