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Flood barrier system
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Patent number 10,287,740
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Issue date May 14, 2019
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Neptune Systems, LLC
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John William Knezevich
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Flood barrier system
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Patent number 9,670,634
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Issue date Jun 6, 2017
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Neptune Systems, LLC
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John William Knezevich
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E04 - BUILDING
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Flood barrier system
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Patent number 9,376,778
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Issue date Jun 28, 2016
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Neptune Systems, LLC
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John William Knezevich
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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75044212 - TRIDENT
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Serial number 75044212
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Registration number 2052236
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Filing date Jan 16, 1996
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Neptune Systems, Inc.
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments