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Helmet impact liner system
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Patent number 9,516,910
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Issue date Dec 13, 2016
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Intellectual Property Holdings, LLC
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Ron Szalkowski
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A42 - HEADWEAR
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Energy management structure
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Patent number 8,726,424
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Issue date May 20, 2014
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Intellectual Property Holdings, LLC
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Shawn Thomas
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A42 - HEADWEAR
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Helmet liner
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Patent number D679058
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Issue date Mar 26, 2013
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Intellectual Property Holdings, LLC
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Ron Szalkowski
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D29 - Equipment for safety, protection, and rescue