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LYONNAISE EAUX DUMEZ

Overview
  • Total Patents
    17
About

LYONNAISE EAUX DUMEZ has a total of 17 patent applications. Its first patent ever was published in 1989. It filed its patents most often in Canada, United States and EPO (European Patent Office). Its main competitors in its focus markets environmental technology, chemical engineering and machines are WATERLEIDING FRIESLAND NV, NORWALK WASTEWATER EQUIPMENT C and DHV WATER BV.

Patent filings in countries

World map showing LYONNAISE EAUX DUMEZs patent filings in countries

Patent filings per year

Chart showing LYONNAISE EAUX DUMEZs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Anselme Christophe 5
#2 Audic Jean-Marc 4
#3 Daniel Loic 4
#4 Alric Gedeon 3
#5 Manem Jacques 3
#6 Blanc Joelle 2
#7 Fayoux Christian 2
#8 Galvez Laure 2
#9 Gedeon Alric 1
#10 Baudin Isabelle 1

Latest patents

Publication Filing date Title
CA2126156A1 Biological treatment of wastewater and facilities for its application
US5364534A Process and apparatus for treating waste liquids
CA2085454A1 Process for biological treatment of impurity-loaded liquids
ITTO920082D0 Process for the countercurrent washing of tubular filtering membranes and equipment for performing the process
GB9121770D0 A method of backwashing tubular filter membranes, and apparatus for implementing the method
EP0459868A1 Process for removing dissolved metals from water
FR2669916A1 Method for the biological degradation of fat and grease waste.
US5066402A Method of changing operating modes in automatic water filtering apparatus using tubular membranes
EP0370859A1 Casing for fibre bundle filtration modules