Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5144781 | Double floor for removing air from rooms | — | 1992-09-08 |
| 4898087 | Laminarizer | Walter Betz, Uwe Plitt, Wolfgang Schmitt | 1990-02-06 |
| 4576088 | Pressure-wave protective flap (or damper) | Wolfgang Mathewes, Uwe Plitt | 1986-03-18 |