Assignee
LYONNAISE EAUX DUMEZ
FR·4 granted patents·234 citations·filing 1990–1994
Top patents by PatentIndex Score
4 records- 0192US5066402AMethod of changing operating modes in automatic water filtering apparatus using tubular membranesLYONNAISE EAUX DUMEZ·Filed 1990·Granted Nov 19, 1991·165 cites·5 claims
- 0278US5364534AProcess and apparatus for treating waste liquidsLYONNAISE EAUX DUMEZ·Filed 1993·Granted Nov 15, 1994·58 cites·7 claims
- 0332US5900150AMethod of purifying waste water biologicallyLYONNAISE EAUX DUMEZ·Filed 1994·Granted May 4, 1999·6 cites·7 claims
- 0424US5395528AMethod of biologically purifying liquids contaminated with impuritiesLYONNAISE EAUX DUMEZ·Filed 1992·Granted Mar 7, 1995·5 cites·6 claims
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