Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4549474 | Air conditioner outlet | Michael Fey, Wolfgang Finkelstein, Hans Riegel | 1985-10-29 |
| 4520844 | Regulator valve for stabilizing volume flow, especially in ventilation systems | Wolfgang Finkelstein | 1985-06-04 |
| 4488575 | Volume flow regulator for ventilation systems | Wolfgang Finkelstein, Gregor Baumeister | 1984-12-18 |