Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8715820 | Odour-absorbing sheet-like structure, method for its production and use of zinc ricinoleate in finely divided solid form on odour-absorbing sheet-like structures | Bernd Klausnitzer, Ernst Raabe | 2014-05-06 |
| 7507272 | Vacuum filter bag with odor removing effect | Dietmar Emig, Ernst Raabe | 2009-03-24 |
| 6706086 | Dust filter bag including a highly porous backing material ply | Dietmar Emig, Ernst Raabe | 2004-03-16 |
| 6395046 | Dust filter bag containing nano non-woven tissue | Dietmar Emig, Ernst Raabe | 2002-05-28 |
| 5437910 | Multi-ply filter lasminate/composite for manufacturing vacuum cleaner filter bags | Ernst Raabe | 1995-08-01 |
| 4242159 | Process for the production of composite membranes | Wolfram Krieger, Roland Reiner | 1980-12-30 |