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

Patent Owner(s)

Patent Owner	Address
PETROLEO BRASILEIRO S A - PETROBRAS	AV REPÚBLICA DO CHILE N 65 CENTRO RIO DE JANEIRO RJ 20031912

International Classification(s)

• C01B:NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
• 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
Pontes, Bittencourt Roberto Carlos	Rio de Janeiro, BR	11	3

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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	Apr 24, 2027
7.5 Year Payment	$3600.00	$1800.00	$900.00	Apr 24, 2031
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Apr 24, 2035

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
October 24, 2023	US,11794168,B2   US11794168B2	GRANTED PATENT AS SECOND PUBLICATION
September 17, 2020	US,20200290021,A1   US20200290021A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11794168

Process for preparing a pre-reforming catalyst having resistance to deactivation by passage of steam in the absence of a reducing agent, and a pre-reforming catalyst

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