Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8388898 | Ceramic filter element | Steffen Heidenreich, Max-Eckhard Roessler, Manfred Gutmann, Sven Chudzinski | 2013-03-05 |
| 8082986 | Filtering device, especially for use as a well screen filter | Steffen Heidenreich, Martin Bergmann | 2011-12-27 |