Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7507272 | Vacuum filter bag with odor removing effect | Albrecht Klimmek, Ernst Raabe | 2009-03-24 |
| 6706086 | Dust filter bag including a highly porous backing material ply | Ernst Raabe, Albrecht Klimmek | 2004-03-16 |
| 6395046 | Dust filter bag containing nano non-woven tissue | Albrecht Klimmek, Ernst Raabe | 2002-05-28 |