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United States of America Patent

SERIAL NO

15523214

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Abstract

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The technology disclosed herein relates to filter assemblies and methods of making filter assemblies. One filter assembly has a first sheet of filter media having a first perimeter region and a second sheet of filter media having a second perimeter region. The first perimeter region and the second perimeter region are bonded in a rim region. A plurality of adsorbent beads are disposed between the first sheet of filter media and the second layer of filter media, and a substantial portion of the plurality of adsorbent beads are unbonded. Other embodiments are also described.

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Patent Owner(s)

Patent OwnerAddress
DONALDSON COMPANY INC1400 WEST 94TH STREET BLOOMINGTON MN 55431

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tuma, Daniel L St. Paul, US 29 300

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