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

Patent Owner(s)

Patent Owner	Address
AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE (ANVAR) PARIS FRANCE A CORP OF FRANCE	43 RUE CAUMARTIN PARIS 75436
COMPAGNIE FRANCAISE DE RAFFINAGE A CORP OF FRANCE	5 RUE MICHEL ANGE PARIS 16

International Classification(s)

• B01D:SEPARATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Atlani, Martial	Paris, FR	2	8
Loutaty, Roben	Le Havre, FR	15	140
Wakselman, Claude	Villebon sur Yvette, FR	18	89
Yacono, Charles	Le Havre, FR	2	8

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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: 4504287

Method of purifying a gas mixture containing undesirable gas compounds

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