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Country	kind	publication No.	Filing Date	Type	Sub-Type
DE	C1	DE19621541	May 29, 1996	Patent	Grant
Type : Patent Sub-Type : Grant
PATENT SPECIFICATION (FIRST PUBL.)		Beatmungsanfeuchter		Apr 10, 1997

• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
DRAGERWERK AKTIENGESELLSCHAFT	MOISLINGER ALLEE 53-55 D-23542 LUBECK

International Classification(s)

• A61M:DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE B....

• 1997 Application Filing Year
• A61M Class
• 1790 Applications Filed
• 1061 Patents Issued To-Date
• 59.28 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Koch, Jochim	Ratzeburg, DE	86	1821
# of filed Patents : 86 Total Citations : 1821

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Patent Citation Ranking

• 111 Citation Count
• A61M Class

• 88.55 % this patent is cited more than
• 23 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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

Full Text

US Patent No: 6367472

Respiration humidifier

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Abstract

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An improved, compact and low-maintenance respiration humidifier of a simple design is proposed, which has an outer jacket with a water feed as well as a breathing gas feed line and breathing gas drain line and contains a bundle of hydrophobic hollow fibers. The breathing gas feed line and the breathing gas drain line are in a gas flow connection with the interior of the hollow fibers. The hollow fibers preferably include polytetrafluoroethylene (PTFE) and have structure for electrical heating on their outer, water-side circumferential surface.

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Description

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Claims

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Legal Events

 

• FPAY2013
• FPAY2009
• FPAY2005
• I2002
• STCF2002
• F1997
• AS1997
• PD1996

Date	Code	Event	Description
Oct 02, 2013	FPAY	FEE PAYMENT	year of fee payment: 12
Sep 09, 2009	FPAY	FEE PAYMENT	year of fee payment: 8
Sep 16, 2005	FPAY	FEE PAYMENT	year of fee payment: 4
Apr 09, 2002	I	Issuance
Mar 21, 2002	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Feb 06, 1997	F	Filing
Jan 20, 1997	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KOCH, JOCHIM;REEL/FRAME:008457/0312 Owner name: DRAGERWERK AKTIENGESELLSCHAFT, GERMANY Effective Date: Jan 20, 1997
May 29, 1996	PD	Priority Date