Lyonnaise des Eaux

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169
 
  
 
F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL 126
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 151

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8720533 Heat exchanger and installation for extracting heat from waste waterApr 29, 05May 13, 14[F24H, F16L, F28F]
5624565 Method of Regulating Aeration in a basin for bilogical treatment of wastewaterSep 13, 95Apr 29, 97[C02F]

Expired/Abandoned/Withdrawn Patents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]
5069353 Housing for fiber-bundle filter modulesExpiredNov 14, 89Dec 03, 91[B65D]
5011613 Method for regulating the residual free chlorine in waterExpiredJan 18, 90Apr 30, 91[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]
4990316 Apparatus for the disolution of ozone in a fluidExpiredDec 21, 89Feb 05, 91[C02F]
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]
4819482 Device for connecting and supporting a water-meterExpiredMar 14, 88Apr 11, 89[G01F]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.