Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6311437 | Pane for solar protection, daylighting and energy conservation | — | 2001-11-06 |
| 5952081 | Pane with seasonally adapted solar radiation transmission | — | 1999-09-14 |
| 4618987 | Large-area acoustic radiation system | Gerhard Steinke, Peter Fels, Wolfgang Hoeg, Wolfgang Ahnert, Frank Steffen +1 more | 1986-10-21 |
| 4509913 | Device for controlling the air supply for a gas burner | Heinz Bathke, Hans Sommers | 1985-04-09 |
| 4396371 | Device for controlling the air supply to a gas burner | Hans Sommers, Heinz Bathke | 1983-08-02 |