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Septic tank filtering system
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Patent number 6,495,040
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Issue date Dec 17, 2002
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Zoeller Co.
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Kenneth E. Zoeller
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Septic tank filtering system
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Patent number 6,331,247
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Issue date Dec 18, 2001
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Zoeller Company
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Kenneth E. Zoeller
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Septic tank filtering system
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Patent number 6,136,190
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Issue date Oct 24, 2000
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Zoeller Co.
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Kenneth E. Zoeller
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Septic tank pump and filter system
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Patent number 5,985,139
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Issue date Nov 16, 1999
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Zoeller Company
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Kenneth E. Zoeller
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Waste water treatment system
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Patent number 5,897,777
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Issue date Apr 27, 1999
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Zoeller Co.
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Kenneth E. Zoeller
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Septic tank filtering system
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Patent number 5,762,790
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Issue date Jun 9, 1998
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Zoeller Co.
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Kenneth E. Zoeller
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL