Patents by Inventor Luis Antonio Miguel Marques Barbosa

Luis Antonio Miguel Marques Barbosa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Purification of metals
    Patent number: 9527072
    Abstract: A solid composition comprises: MnO2; and a compound represented by the general formula (I) wherein: R is a polymer; each Y is independently a hydrogen or a negative charge; Z is either hydrogen or is not present; each n is independently 1, 2, 3, 4, 5 or 6; wherein the MnO2 is bound to the compound of formula (I) so as to coat the surface thereof. Such a composition may be used for the separation of polyvalent metal species, such as Mo, from one or more accompanying impurities.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: December 27, 2016
    Assignee: Mallinckrodt LLC
    Inventor: Luis Antonio Miguel Marques Barbosa
  • Purification of Metals
    Publication number: 20140231709
    Abstract: A solid composition comprises: MnO2; and a compound represented by the general formula (I) wherein: R is a polymer; each Y is independently a hydrogen or a negative charge; Z is either hydrogen or is not present; each n is independently 1, 2, 3, 4, 5 or 6; wherein the MnO2 is bound to the compound of formula (I) so as to coat the surface thereof. Such a composition may be used for the separation of polyvalent metal species, such as Mo, from one or more accompanying impurities.
    Type: Application
    Filed: May 1, 2014
    Publication date: August 21, 2014
    Applicant: Mallinckrodt LLC
    Inventor: Luis Antonio Miguel Marques Barbosa
  • Purification of metals
    Patent number: 8753590
    Abstract: A solid composition comprises: MnO2; and a compound represented by the general formula (I) wherein: R is a polymer; each Y is independently a hydrogen or a negative charge; Z is either hydrogen or is not present; each n is independently 1, 2, 3, 4, 5 or 6; wherein the MnO2 is bound to the compound of formula (I) so as to coat the surface thereof. Such a composition may be used for the separation of polyvalent metal species, such as Mo, from one or more accompanying impurities.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: June 17, 2014
    Assignee: Mallinckrodt LLC
    Inventor: Luis Antonio Miguel Marques Barbosa
  • Purification of metals
    Patent number: 8318113
    Abstract: A solid composition comprises: —MnO2; and—a compound represented by the general formula (I) wherein: R is a polymer; each Y is independently a hydrogen or a negative charge; Z is either hydrogen or is not present; each n is independently 1, 2, 3, 4, 5 or 6; wherein the MnO2 is bound to the compound of formula (I) so as to coat the surface thereof. Such a composition may be used for the separation of polyvalent metal species, such as Mo, from one or more accompanying impurities.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: November 27, 2012
    Assignee: Mallinckrodt LLC
    Inventor: Luis Antonio Miguel Marques Barbosa
  • Purification of Metals
    Publication number: 20100202943
    Abstract: A solid composition comprises: —MnO2; and—a compound represented by the general formula (I) wherein: R is a polymer; each Y is independently a hydrogen or a negative charge; Z is either hydrogen or is not present; each n is independently 1, 2, 3, 4, 5 or 6; wherein the MnO2 is bound to the compound of formula (I) so as to coat the surface thereof. Such a composition may be used for the separation of polyvalent metal species, such as Mo, from one or more accompanying impurities.
    Type: Application
    Filed: September 10, 2008
    Publication date: August 12, 2010
    Inventor: Luis Antonio Miguel Marques Barbosa