Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4396656 | Longitudinally divided hose-like filling | Michael Still, Hermann Uwe Voigt, Frank Patzke | 1983-08-02 |
| 4297526 | Fire resistant electrical cables | Ottmar Leuchs | 1981-10-27 |