Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6261678 | Flexible water and oil resistant composites | Wolfgang Buerger, Rudolf Steffl, Wolfgang Zehnder | 2001-07-17 |
| 6074738 | Flexible water and oil resistant composites | Wolfgang Buerger, Rudolf Steffl, Wolfgang Zehnder | 2000-06-13 |