Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8449637 | Oil mist separator of an internal combustion engine | Sieghard Pietschner | 2013-05-28 |
| 7510518 | Method for making standing folds and knife folding machine with work transfer device | Roland Pietschmann, Peter Rieckhoff, Detlef Rothgänger, Michael Sperling, Frank Matecka | 2009-03-31 |