Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4514449 | Profile strip, especially for the production of window or door frames | Bertram Gasper, Josef Kurth, Karl-Gunter Scharf, Waldemar Wissinger | 1985-04-30 |
| 4455398 | Glass fiber reinforced polyvinyl composition | Bertram Gasper, Josef Kurth, Karl-Gunter Scharf, Waldemar Wissinger | 1984-06-19 |
| 4370830 | Sliding window | Hans-Joachim Schaefer | 1983-02-01 |
| 4286716 | Building kit for vertical or horizontal sliding windows | Hans Theissen | 1981-09-01 |
| 4239574 | Process and apparatus for the welding of synthetic resin structures | Heinrich Aust, Heinz Nowak, Franz Primessing | 1980-12-16 |