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

Patent Owner(s)

Patent Owner	Address
VALE S A	RIO DE JANEIRO

International Classification(s)

• C22B:PRODUCTION OR REFINING OF METALS

• 2014 Application Filing Year
• C22B Class
• 297 Applications Filed
• 251 Patents Issued To-Date
• 84.52 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Botelho, Marcus Eduardo Emrich	Nova Lima, BR	3	3
# of filed Patents : 3 Total Citations : 3
Vieira, Maria Beatriz Harmendani	Belo Horizonte, BR	1	0
# of filed Patents : 1 Total Citations : 0

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Patent Citation Ranking

• 0 Citation Count
• C22B Class

• 0 % this patent is cited more than
• 8 Age

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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 25, 2028

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 25, 2017	US,9631253,B2   US9631253B2	GRANTED PATENT AS SECOND PUBLICATION
July 16, 2015	US,20150197825,A1   US20150197825A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9631253

Aging (weathering) inhibition method of iron ore pellets during stockpiling

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Abstract

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The present invention refers to an effective method for minimizing the problems of iron ore pellet degradation by weathering during their stockpiling, i.e., by providing an appropriate method for improving the state of the art with regard to iron ore pellet resistance related just to the hydration process of the slag phase. Thus, in order to minimize hydration in the slag phase, stabilizers are introduced into the mixture used to produce iron ore pellets prior to being heat-treated.

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Description

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Claims

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Claims data not available

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Legal Events

 

• MAFP2020
• AS2017
• I2017
• STCF2017
• P2015
• F2014
• AS2014
• PD2011

Date	Code	Event	Description
Sep 14, 2020	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4
Sep 13, 2017	AS	ASSIGNMENT	free format text: CHANGE OF ADDRESS;ASSIGNOR:VALE S.A.;REEL/FRAME:043849/0613 Owner name: VALE S.A., BRAZIL Effective Date: Sep 13, 2017
Apr 25, 2017	I	Issuance
Apr 05, 2017	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jul 16, 2015	P	Published
Dec 16, 2014	F	Filing
Jul 28, 2014	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:VIEIRA, MARIA BEATRIZ HARMENDANI;BOTELHO, MARCUS EDUARDO EMRICH;REEL/FRAME:039939/0379 Owner name: VALE S.A., BRAZIL Effective Date: Jul 28, 2014
Sep 05, 2011	PD	Priority Date