Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612747 | Connection of a cast-in-place reinforced concrete slab to a prefabricated column | Wolfhart Andra, Willi Kunzl, Horst Falkner, Bernhard Gohler, Hans-Peter Andra | 1986-09-23 |
| 4352112 | Reflector with air pressure means | Fritz Leonhardt, Wolfhart Andra, Jorg Schlaich | 1982-09-28 |
| 4326363 | Waisted envelope for tubular building structures | Fritz Leonhardt, Wolfhart Andra, Jorg Schlaich, Gunter Mayr | 1982-04-27 |