Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4501516 | Anchoring of tension members | Martin Weiser, Jurgen Faltin, Lothar Preis, Rudolf Schmidt, Eberhard Born | 1985-02-26 |
| 4443132 | Anchoring of tension members | Martin Weiser, Jurgen Faltin, Lothar Preis, Rudolf Schmidt, Eberhard Born | 1984-04-17 |
| 4273476 | Reinforcement of armored earth work constructions | Hans-Joachim Haas, Martin Weiser, Rolf Forster, Lothar Preis, Rudolf Schmidt | 1981-06-16 |