Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6890434 | Backflush filter, in particular for filtering lubricant oil | Willi Rott, Wilhelm Vieten, Heinz Sindorf, Rudiger Lennartz | 2005-05-10 |
| 6872310 | Precoated filter for the filtration of flowing media | Birgit Trotzki, Rudiger Lennartz, Stefan Schmitz | 2005-03-29 |