Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4922681 | Hot-rolled concrete reinforcing bar, in particular reinforcing ribbed bar | Dieter Jungwirth | 1990-05-08 |
| 4923528 | Method for manufacturing rolled steel products | Erich Richartz | 1990-05-08 |
| 4877463 | Method for producing rolled steel products, particularly threaded steel tension members | Max Aicher, Dieter Jungwirth, Hans Klein | 1989-10-31 |