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Ryan M. Callahan
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Minneapolis, MN, US
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Patents Grants
last 30 patents
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Patent Grant
Recirculation filter for an electronics enclosure
Patent number
10,293,293
Issue date
May 21, 2019
Donaldson Company, Inc.
Ryan M. Callahan
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
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Patent Application
RECIRCULATION FILTER FOR AN ELECTRONICS ENCLOSURE
Publication number
20170036151
Publication date
Feb 9, 2017
Donaldson Company, Inc.
Ryan M. Callahan
G11 - INFORMATION STORAGE