Company Filing History:

6 out of 114

Degremont

Societe Lyonnaise Des Eaux Et De L'eclairage

patents

5. 1 out of 1

Institut De La Filtration Et Des Techniques Separatives Foulayronnes

patent

where one patent can have more than one assignee

Years Active: 1981-1998

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5798044 - Method for sewage treatment (1998-08-25),

2. 5348653 - Process for the biological purification of effluent (1994-09-20),

3. 4869815 - Fluidized bed reactor with means for ensuring homogeneous distribution (1989-09-26),

4. 4659476 - Method for the treatment of liquids on granular materials (1987-04-21),

5. 4569759 - Tangential filtration apparatus and plant comprising such apparatus (1986-02-11),

6. 4561974 - Apparatus for the anaerobic filtration of waste water (1985-12-31),

7. 4482458 - Process and apparatus for the anaerobic treatment of waste water in a (1984-11-13),

8. 4269715 - Process and apparatus for treating by ion exchange or adsorption fluids (1981-05-26),

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For the Inventor, By the Inventor

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Location History:

Company Filing History:

Years Active: 1981-1998