Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11311890 | Filter device | Klaus-Dieter Ruhland, Michael Kaufmann | 2022-04-26 |
| 11311891 | Multi-cyclone separator of a multi-stage fluid filter for cleaning gaseous fluid and multi-stage fluid filter | Klaus-Dieter Ruhland, Michael Kaufmann | 2022-04-26 |