Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8002862 | Filter bag and method for the production thereof | — | 2011-08-23 |
| 7744680 | Vacuum-cleaner bag and method for extending the service life of vacuum-cleaner bags | Ralf Sauer | 2010-06-29 |
| 7582142 | Absorbing agent, dust collection chamber and method for adsorbing odours | Ralf Sauer | 2009-09-01 |
| 7094270 | Composite filter and method of making the same | Bas Schultink | 2006-08-22 |
| 6372004 | High efficiency depth filter and methods of forming the same | Bas Schultink | 2002-04-16 |
| 6183536 | Enhanced performance vacuum cleaner bag and method of operation | Bas Schultink | 2001-02-06 |
| 6171369 | Vacuum cleaner bag construction and method of operation | Bas Schultink | 2001-01-09 |
| 6017411 | Method of manufacturing a filter material | Frits Schultink | 2000-01-25 |
| 5871836 | Composite pleated fibrous structures containing split film fibers | Bas Schultink, Larry C. Wadsworth | 1999-02-16 |