Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1074485 | Signal device | — | 2025-05-13 |
| D757588 | Compact signaling device | — | 2016-05-31 |
| D709782 | Alarm device | — | 2014-07-29 |
| D709783 | Warning siren | — | 2014-07-29 |
| D655216 | Signal device | — | 2012-03-06 |
| 7526098 | Bass reflex box arrangement including tool storage | Frank Rosental, Andreas Heim | 2009-04-28 |