Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7892077 | Ridge strip apparatus | Manfred Sattler | 2011-02-22 |
| 6182404 | Sub-roofing element, on a roof, for a flat, plate-shaped structural element | Norbert Rosler | 2001-02-06 |
| 6119415 | Pitched roof with an energy collection system | Norbert Rosler | 2000-09-19 |
| 6105331 | Joist element for fastening a flat, plate-shaped structural element to a pitched roof | Norbert Rosler | 2000-08-22 |
| 5211512 | Expansion anchor | Albert Frischmann, Paul Steurer, Rudolf Schnabl, Kurt Mermi | 1993-05-18 |
| 5104266 | Composite anchor | Anisi Daryoush, Albert Frischmann | 1992-04-14 |
| 5060447 | Tie rod | Albert Frischmann, Anisi Daryoush, Paul Steurer | 1991-10-29 |
| 4971486 | Undercutting drill | Paul Steurer, Albert Frischmann | 1990-11-20 |
| 4470406 | Roofing tile with thermal conduction device | Wilhelm Roettger, Josef Zeibig, Guenter Joest | 1984-09-11 |
| 4416094 | Attic window assembly | Franz Bugener, Werner Horch, Wilhelm Rottger, Gunter Jost, Johann Christian Felix Kirsch | 1983-11-22 |