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Joost Groeneweg
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Kreuzau, DE
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last 30 patents
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Patent Grant
Sewage delivery for an activated sludge process
Patent number
5,308,490
Issue date
May 3, 1994
Forschungzentrum Juelich GmbH
Markus Schroeder
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Patent Grant
Waste water purification process with batchwise supply of waste wat...
Patent number
5,019,266
Issue date
May 28, 1991
Forschungszentrum Juelich GmbH
Carl-Johannes Soeder
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE