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Mask structure
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Patent number 10,820,638
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Issue date Nov 3, 2020
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Jing-Jyr Lin
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A41 - WEARING APPAREL
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Complex respirator
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Patent number 8,066,005
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Issue date Nov 29, 2011
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Jing-Jyr Lin
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A62 - LIFE-SAVING FIRE-FIGHTING
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Mask
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Patent number D570474
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Issue date Jun 3, 2008
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Jing-Jyr Lin
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D24 - Medical and laboratory equipment
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Mask
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Patent number D569969
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Issue date May 27, 2008
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Jing-Jyr Lin
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D24 - Medical and laboratory equipment
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Face mask structure
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Patent number 7,210,482
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Issue date May 1, 2007
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Taiwan Textile Research Institute
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Po-Hsiung Huang
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A62 - LIFE-SAVING FIRE-FIGHTING