Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5127959 | Process for disposal of a fire-extinguishing foam or of other foams | Reiner Roy | 1992-07-07 |
| 4993496 | Quick release valve for sprinkler head | Armin Riedle, Horst Zientek, Heinz Heider | 1991-02-19 |