Patents by Inventor Andre Lesouef

Andre Lesouef has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the treatment of aqueous effluents on biofilters or other devices making use of fixed cultures
    Patent number: 5795481
    Abstract: A process for the treatment of aqueous effluent with a view to its purification, the process including at least one stage consisting of causing the water to pass into the interior of at least one battery of several biological filters with fixed cultures or other devices with fixed cultures operating in parallel, characterized in that it comprises supplying the filters at constant flow and to cause the number of filters supplied and the number of filters not supplied in the battery, to be varied, in accordance with the total flow of aqueous effluent to be treated. Such a process allows the performance of biofilters and other devices with fixed cultures to be improved.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: August 18, 1998
    Assignee: OTV Omnium De Traitements Et De Valorisation S.A.
    Inventor: Andre Lesouef