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Filter frame assembly with seal
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Patent number 9,610,528
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Issue date Apr 4, 2017
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3M Innovative Properties Company
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Francis E. Porbeni
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Respiratory mask
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Patent number D692125
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Issue date Oct 22, 2013
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3M Innovative Properties Company
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Dean R. Duffy
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D24 - Medical and laboratory equipment
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Joined filter media pleat packs
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Patent number 8,491,689
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Issue date Jul 23, 2013
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3M Innovative Properties Company
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Dean R. Duffy
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Self-supporting pleated filter media
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Patent number 8,419,817
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Issue date Apr 16, 2013
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3M Innovative Properties Company
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Douglas C. Sundet
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filter cartridge
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Patent number D652910
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Issue date Jan 24, 2012
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3M Innovative Properties Company
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Dean R. Duffy
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D24 - Medical and laboratory equipment
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