Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8726600 | Concrete crack inhibiting device | — | 2014-05-20 |
| 5611834 | Method for controlling the free deformation of thermoplastic material | Claus Walter | 1997-03-18 |
| 5298322 | Press pad for high-pressure presses | Bruno Hennecken | 1994-03-29 |
| 4212855 | Process for producing concentrated sulfuric acid | Walter Kerner | 1980-07-15 |