Grafen; Karl
Patent Applications and Registrations
Patent applications and USPTO patent grants for Grafen; Karl.The latest application filed is for "filter plate of a filter press".
- Grafen; Karl - Wuerselen DE
| Patent | Date |
|---|---|
| Filter plate of a filter press Grant 6,852,220 - Grafen , et al. February 8, 2 | 2005-02-08 |
| Device for detaching filter cakes Grant 6,754,927 - Claessen , et al. June 29, 2 | 2004-06-29 |
| Filter press with a stack of vertically aligned, horizontally displaceable filter plates Grant 6,626,094 - Grafen September 30, 2 | 2003-09-30 |
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