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Corrugated pipe with outer layer
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Patent number 8,733,405
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Issue date May 27, 2014
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Advanced Drainage Systems, Inc.
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James B. Goddard
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Corrugated pipe with outer layer
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Patent number 7,484,535
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Issue date Feb 3, 2009
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Advanced Drainage Systems, Inc.
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James B. Goddard
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Pipe having a water-tight in-line bell
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Patent number 7,306,264
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Issue date Dec 11, 2007
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Advanced Drainage Systems, Inc.
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James B. Goddard
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Pipe having an in-line bell
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Patent number 6,126,209
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Issue date Oct 3, 2000
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Advanced Drainage Systems, Inc.
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James B. Goddard
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Pipe construction
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Patent number 5,765,598
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Issue date Jun 16, 1998
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Advanced Drainage Systems, Inc.
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James B. Goddard
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Pipe coupler
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Patent number 5,765,880
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Issue date Jun 16, 1998
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Advanced Drainage Systems, Inc.
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James B. Goddard
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...