Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8418988 | Formwork tie rod having conical plastic sheath | — | 2013-04-16 |
| 5246599 | Method and arrangement for treatment of sewage sludge | — | 1993-09-21 |
| 4877463 | Method for producing rolled steel products, particularly threaded steel tension members | Dieter Jungwirth, Hans Klein, Dieter Russwurm | 1989-10-31 |