Assignee
WATERLEIDING FRIESLAND NV
US·4 granted patents·95 citations·filing 1998–1999
Top patents by PatentIndex Score
4 records- 0178US6302448B1Coupling unit for membrane elementsWATERLEIDING FRIESLAND NV·Filed 1998·Granted Oct 16, 2001·57 cites·12 claims
- 0252US6592763B1Method and device for treating aqueous flows in a bioreactor, an ultrafiltration unit and a membrane filtration unitWATERLEIDING FRIESLAND NV·Filed 1999·Granted Jul 15, 2003·24 cites·19 claims
- 0331US6395182B1Method for purifying water, in particular ground water, under anaerobic conditions, using a membrane filtration unit, a device for purifying water, as well as drinking water obtained by using such a methodWATERLEIDING FRIESLAND NV·Filed 1998·Granted May 28, 2002·7 cites·18 claims
- 0431US6395177B1Process and apparatus for decoloring liquids and water product thereofWATERLEIDING FRIESLAND NV·Filed 1998·Granted May 28, 2002·7 cites·25 claims
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