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

Patent Owner(s)

Patent Owner	Address
AXIVA GMBH	65926 FRANKFURT AM MAIN

International Classification(s)

• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS
• B01D:SEPARATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Berwe, Hermann	Norvenich-Pingsheim, DE	3	1
Knauf, Rudiger	Aull, DE	6	32
Neumann, Herbert	Bergheim, DE	3	6
Stumpf, Matthias	Wiesbaden, DE	3	18
Wolter, Manfred	Erftstadt, DE	8	62

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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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
November 12, 2002	US,6478851,B2   US6478851B2	GRANTED PATENT AS SECOND PUBLICATION
July 04, 2002	US,20020087032,A1   US20020087032A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 6478851

Ethylene treatment by gas permeation

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