Assignee
LYONNAISE EAUX ECLAIRAGE
FR·15 granted patents·422 citations·filing 1983–1995
Top patents by PatentIndex Score
15 records- 0188US5069353AHousing for fiber-bundle filter modulesLYONNAISE EAUX ECLAIRAGE·Filed 1989·Granted Dec 3, 1991·60 cites·7 claims
- 0287US4948444AProcess for production of a bundle of hollow semi-permeable fibersLYONNAISE EAUX ECLAIRAGE·Filed 1988·Granted Aug 14, 1990·84 cites·6 claims
- 0386US5624565AMethod of Regulating Aeration in a basin for bilogical treatment of wastewaterLYONNAISE EAUX ECLAIRAGE·Filed 1995·Granted Apr 29, 1997·68 cites·1 claims
- 0479US5098572AMethod and apparatus for increasing sludge concentration in water purification installationsLYONNAISE EAUX ECLAIRAGE·Filed 1990·Granted Mar 24, 1992·58 cites·6 claims
- 0564US4572821AApparatus for dissolving ozone in a fluidLYONNAISE EAUX ECLAIRAGE·Filed 1984·Granted Feb 25, 1986·30 cites·14 claims
- 0661US4917798AMethod of fabricating a perforated plate for a hollow fiber separator apparatus, and devices obtained therebyLYONNAISE EAUX ECLAIRAGE·Filed 1989·Granted Apr 17, 1990·25 cites·11 claims
- 0760US4569759ATangential filtration apparatus and plant comprising such apparatusLYONNAISE EAUX ECLAIRAGE·Filed 1984·Granted Feb 11, 1986·23 cites·7 claims
- 0858US5171493AProcess for extruding semi-permeable membrane having separate hollow passagewaysLYONNAISE EAUX ECLAIRAGE·Filed 1989·Granted Dec 15, 1992·21 cites·1 claims
- 0940US4916317AMethod and a device for detecting changes in a surface state and for monitoring the surface stateLYONNAISE EAUX ECLAIRAGE·Filed 1988·Granted Apr 10, 1990·14 cites·15 claims
- 1039US4975187AFilter module including a baffle for protecting a bundle of filter fibersLYONNAISE EAUX ECLAIRAGE·Filed 1989·Granted Dec 4, 1990·7 cites·3 claims
- 1133US5006229AMethod of manufacturing a unit assembly of filter membranes, a mold used in the method, and a product obtained from the methodLYONNAISE EAUX ECLAIRAGE·Filed 1989·Granted Apr 9, 1991·4 cites·10 claims
- 1232US4990316AApparatus for the disolution of ozone in a fluidLYONNAISE EAUX ECLAIRAGE·Filed 1989·Granted Feb 5, 1991·8 cites·3 claims
- 1328US4567020AApparatus for liquid-liquid extraction using a mixing/settling processLYONNAISE EAUX ECLAIRAGE·Filed 1984·Granted Jan 28, 1986·8 cites·9 claims
- 1427US4485018AProcess of clarifying waterLYONNAISE EAUX ECLAIRAGE·Filed 1983·Granted Nov 27, 1984·3 cites·8 claims
- 1524US5011613AMethod for regulating the residual free chlorine in waterLYONNAISE EAUX ECLAIRAGE·Filed 1990·Granted Apr 30, 1991·9 cites·3 claims
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