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

Patent Owner(s)

Patent Owner	Address
WILSON WOLF MANUFACTURING CORPORATION	33 5TH AVENUE NW SUITE 700 NEW BRIGHTON MN 55112

International Classification(s)

• C12N:MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF
• C12M:APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Page, Douglas A	Bloomington, US	19	699
Robeck, Alison	St. Michael, US	11	579
Welch, Daniel P	Zimmerman, US	22	827
Wilson, John R	New Brighton, US	170	9289

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Oct 15, 2025

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
April 15, 2014	US,8697443,B2   US8697443B2	GRANTED PATENT AS SECOND PUBLICATION
October 07, 2010	US,20100255576,A1   US20100255576A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8697443

Cell culture methods and devices utilizing gas permeable materials

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