Companhia Vale do Rio Doce

Patent Applications and Registrations

Patent applications and USPTO patent grants for Companhia Vale do Rio Doce.The latest application filed is for "process for recovery of nickel and cobalt from laterite ores using ion exchange resin".

Company Profile

0.8.4

Companhia Vale do Rio Doce - Santa Luzia Minas Gerais BR
Companhia Vale Do Rio Doce - Minas Gerais BR
Companhia Vale do Rio Doce - Minas Gerals BR
Companhia Vale Do Rio Doce - Santa Luzia-Minas Gerais BR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Trademarks

Patent Activity

Patent	Date
Device for eliminating oversize pellets from balling disks Grant 8,162,649 - Valter , et al. April 24, 2	2012-04-24
Process for extraction of nickel, cobalt, and other base metals from laterite ores by using heap leaching and product containing nickel, cobalt, and other metals from laterite ores Grant 7,964,016 - Pereira , et al. June 21, 2	2011-06-21
Process For Recovery Of Nickel And Cobalt From Laterite Ores Using Ion Exchange Resin App 20100196190 - Mendes; Flavia Dutra	2010-08-05
Process for enrichment of anatase mechanical concentrates in order to obtain synthetic rutile with low contents of rare earth and radioactive elements Grant 7,618,601 - Rodrigues De Freitas , et al. November 17, 2	2009-11-17
Process to obtain titanium concentrates with high contents of TiO.sub.2 and low contents of radionuclide elements from anatase mechanical concentrates Grant 7,572,418 - Horta , et al. August 11, 2	2009-08-11
Combined Leaching Process App 20080286182 - Costa; Renato de Souza ; et al.	2008-11-20
Process for Enrichment of Anatase Mechanical Concentrates in Order to Obtain Synthetic Rutile with Low Contents of Rare Earth and Radioactive Elements App 20080286181 - Freitas; Lino Rodrigues De ; et al.	2008-11-20
Material for Coating Iron Ore Pelletizing Disks and Drums and a Constructive Arrangement for Pelletizing Disks and Drums App 20080143026 - Bravim; Alessandro ; et al.	2008-06-19
Method to increase the adherence of coating materials on ferrous materials Grant 7,226,495 - Mourao , et al. June 5, 2	2007-06-05
Roller device for displacement of railroad switching rails Grant 6,189,840 - Mantovan , et al. February 20, 2	2001-02-20
Machine for polishing railway vehicle wheel axles Grant 6,089,962 - July 18, 2	2000-07-18
Tooth of ore recovery buckets Grant 5,966,848 - Monteiro, Jr. , et al. October 19, 1	1999-10-19

Company Registrations

SEC	0001168343	COMPANHIA VALE DO RIO DOCE/ADR
SEC	0000915754	COMPANHIA VALE DO RIO DOCE /FI

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