Heat exchanger

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12215939
APP PUB NO 20230108901A1
SERIAL NO

17909641

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A heat exchanger includes a plurality of flat heat transfer tubes and a header, wherein each of the flat heat transfer tubes internally includes a plurality of windward channels and a plurality of leeward channels that are arranged on a leeward side of the windward channels, the header includes a main body unit having an internal space that is connected to the windward channels and the leeward channels, a partition member that separates the internal space into a windward side space at a side of ends of the windward channels and a leeward side space at a side of ends of the leeward channels, and an inflow portion that supplies a refrigerant to the lower portion of the leeward side space, and an upper side communication path that allows communication between the leeward side space and the windward side space is formed in an upper portion of the partition member.

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First Claim

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Family

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Patent Owner(s)

  • FUJITSU GENERAL LIMITED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Maema, Yoshinari Kanagawa, JP 12 9
Nakata, Shohei Kanagawa, JP 11 8
Oka, Kotaro Kanagawa, JP 15 39

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Aug 4, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 4, 2032
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Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00