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Filter media, elements, and methods
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Patent number 11,845,027
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Issue date Dec 19, 2023
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Donaldson Company, Inc.
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Qiong Gao
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filter media, elements, and methods
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Patent number 11,161,070
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Issue date Nov 2, 2021
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Donaldson Company, Inc.
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Qiong Gao
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Gradient nanofiber filter media
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Patent number 10,953,356
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Issue date Mar 23, 2021
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Cummins Filtration IP, Inc.
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William C. Haberkamp
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Air filter material
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Patent number 10,610,814
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Issue date Apr 7, 2020
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Unitika Ltd.
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Yukihiro Kihara
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Gradient nanofiber filter media
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Patent number 10,537,837
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Issue date Jan 21, 2020
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Cummins Filtration IP, Inc.
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William C. Haberkamp
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Elastomeric depth filter
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Patent number 10,464,000
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Issue date Nov 5, 2019
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North Carolina State University
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Behnam Pourdeyhimi
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Multi-layered filter media
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Patent number 10,080,985
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Issue date Sep 25, 2018
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Hollingsworth & Vose Company
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Máté Nagy
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Gradient nanofiber filter media
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Patent number 9,987,578
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Issue date Jun 5, 2018
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Cummins Filtration IP, Inc.
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William C. Haberkamp
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Multi-ply filter medium
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Patent number 9,597,621
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Issue date Mar 21, 2017
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Johns Manville
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Juergen Umminger
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filter media and elements
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Patent number 9,474,994
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Issue date Oct 25, 2016
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Donaldson Company, Inc.
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Qiong Gao
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filter media with improved conductivity
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Patent number 9,192,942
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Issue date Nov 24, 2015
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Hollingsworth & Vose Company
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Wai Ming Choi
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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Filter medium
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Patent number 9,028,579
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Issue date May 12, 2015
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Johns Manville
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Christian Hassmann
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR