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Atmospheric balloon system
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Patent number 9,845,141
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Issue date Dec 19, 2017
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Raven Industries, Inc.
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Kurt L. Sehnert
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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High altitude balloon system
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Patent number 9,463,861
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Issue date Oct 11, 2016
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Raven Industries, Inc.
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Michael S. Smith
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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High altitude balloon system
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Patent number 9,193,480
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Issue date Nov 24, 2015
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Raven Industries, Inc.
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Michael Smith
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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