Lyonnaise des Eaux
Patent Owner
Stats
- 2 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- May 13, 2014 most recent publication
Details
- 2 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 191 Total Citation Count
- Mar 14, 1988 Earliest Filing
- 10 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Recent Publications
- No Recent Publications to Display
Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5098572 Method and apparatus for increasing sludge concentration in water purification installationsExpiredSep 21, 90Mar 24, 92[C02F]
5006229 Method of manufacturing a unit assembly of filter membranes, a mold used in the method, and a product obtained from the methodExpiredDec 11, 89Apr 09, 91[B01D]
4995643 Device for fixing a water meter on to a base and method relating theretoExpiredSep 14, 89Feb 26, 91[F16L]
4975187 Filter module including a baffle for protecting a bundle of filter fibersExpiredNov 14, 89Dec 04, 90[B01D]
4917798 Method of fabricating a perforated plate for a hollow fiber separator apparatus, and devices obtained therebyExpiredMar 21, 89Apr 17, 90[B01D]
4916317 Method and a device for detecting changes in a surface state and for monitoring the surface stateExpiredOct 06, 88Apr 10, 90[G01N]
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