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

Patent Owner(s)

Patent Owner	Address
INSTITUTO NACIONAL DE TECNOLOGIA- INT	AVENIDA VENEZUELA 82 TERREO ANEXO 01 SALA 101- SAUDE RIO DE JANEIRO 20081-312

International Classification(s)

• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS
• B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Da, Costa Zonetti Priscila	Rio de Janeiro, BR	1	0
Gaspar, De Barros Alexandre	Rio de Janeiro, BR	1	0
Gorenstin, Appel Lucia	Rio de Janeiro, BR	1	0
Honorato, Chagas Luciano	Santos Dumont, BR	1	0
Klotz, Rabello Carlos Rene	Rio de Janeiro, BR	4	2
Rodrigues, Michelly Távora	Belford Roxo, BR	1	0

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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	Nov 9, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Nov 9, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Nov 9, 2034

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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
May 09, 2023	US,11642657,B2   US11642657B2	GRANTED PATENT AS SECOND PUBLICATION
March 16, 2023	US,20230084913,A1   US20230084913A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11642657

Method for preparing a catalyst for one-step production of butadiene from ethanol, catalyst and use thereof

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