Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6181709 | Method and apparatus for the enlargement of the range of the transmission channel between functional groups of the | Klaus Helbig | 2001-01-30 |
| 5673258 | Method and apparatus for the enlargement of the reach of the transmission channel between functional groups of an | Klaus Helbig, Roland Geissler | 1997-09-30 |