Patents by Inventor Paulo J. M. Monteiro

Paulo J. M. Monteiro 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).

  • Patent number: 9260314
    Abstract: Methods are provided for producing a composition comprising carbonates, wherein the methods comprise utilizing waste sources of metal oxides. An aqueous solution of divalent cations, some or all of which are derived from a waste source of metal oxides, may be contacted with CO2 and subjected to precipitation conditions to provide compositions comprising carbonates. In some embodiments, a combustion ash is the waste source of metal oxides for the aqueous solution containing divalent cations. In some embodiments, a combustion ash is used to provide a source of proton-removing agents, divalent cations, silica, metal oxides, or other desired constituents or a combination thereof.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: February 16, 2016
    Assignee: Calera Corporation
    Inventors: Brent Constantz, Paulo J. M. Monteiro, Sidney Omelon, Miguel Fernandez, Kasra Farsad, Katharine Geramita, Karin Yaccato
  • Publication number: 20150031799
    Abstract: Provided are compositions, methods and systems including cementitious compositions and reinforcing materials wherein the cementitious composition comprises a metastable component.
    Type: Application
    Filed: October 6, 2014
    Publication date: January 29, 2015
    Inventors: BRENT R. CONSTANTZ, PAULO J. M. MONTEIRO, Kyle Self, IRVIN CHEN
  • Patent number: 8906156
    Abstract: Provided are compositions, methods and systems including cementitious compositions and reinforcing materials wherein the cementitious composition comprises a metastable component.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: December 9, 2014
    Assignee: Calera Corporation
    Inventors: Brent R. Constantz, Paulo J. M. Monteiro, Kyle Self, Irvin Chen
  • Publication number: 20130243674
    Abstract: Methods are provided for producing a composition comprising carbonates, wherein the methods comprise utilizing waste sources of metal oxides. An aqueous solution of divalent cations, some or all of which are derived from a waste source of metal oxides, may be contacted with CO2 and subjected to precipitation conditions to provide compositions comprising carbonates. In some embodiments, a combustion ash is the waste source of metal oxides for the aqueous solution containing divalent cations. In some embodiments, a combustion ash is used to provide a source of proton-removing agents, divalent cations, silica, metal oxides, or other desired constituents or a combination thereof.
    Type: Application
    Filed: May 6, 2013
    Publication date: September 19, 2013
    Applicant: CALERA CORPORATION
    Inventors: Brent Constantz, Paulo J. M. Monteiro, Sidney Omelon, Miguel Fernandez, Kasra Farsad, Katharine Geramita, Karin Yaccato
  • Publication number: 20130139727
    Abstract: Provided are compositions, methods and systems including cementitious compositions and reinforcing materials wherein the cementitious composition comprises a metastable component.
    Type: Application
    Filed: July 27, 2012
    Publication date: June 6, 2013
    Inventors: Brent R. CONSTANTZ, Paulo J.M. Monteiro, Kyle Self, Irvin Chen
  • Publication number: 20100239467
    Abstract: Methods are provided for producing a composition comprising carbonates, wherein the methods comprise utilizing waste sources of metal oxides. An aqueous solution of divalent cations, some or all of which are derived from a waste source of metal oxides, may be contacted with CO2 and subjected to precipitation conditions to provide compositions comprising carbonates. In some embodiments, a combustion ash is the waste source of metal oxides for the aqueous solution containing divalent cations. In some embodiments, a combustion ash is used to provide a source of proton-removing agents, divalent cations, silica, metal oxides, or other desired constituents or a combination thereof.
    Type: Application
    Filed: May 27, 2010
    Publication date: September 23, 2010
    Inventors: Brent CONSTANTZ, Paulo J.M. MONTEIRO, Sidney OMELON, Miguel FERNANDEZ, Kasra FARSAD, Katharine GERAMITA, Karin YACCATO
  • Patent number: 7754169
    Abstract: Methods are provided for producing a composition comprising carbonates, wherein the methods comprise utilizing waste sources of metal oxides. An aqueous solution of divalent cations, some or all of which are derived from a waste source of metal oxides, may be contacted with CO2 and subjected to precipitation conditions to provide compositions comprising carbonates. In some embodiments, a combustion ash is the waste source of metal oxides for the aqueous solution containing divalent cations. In some embodiments, a combustion ash is used to provide a source of proton-removing agents, divalent cations, silica, metal oxides, or other desired constituents or a combination thereof.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: July 13, 2010
    Assignee: Calera Corporation
    Inventors: Brent Constantz, Paulo J. M. Monteiro, Sidney Omelon, Miguel Fernandez, Kasra Farsad, Katharine Geramita, Karin Yaccato
  • Publication number: 20100000444
    Abstract: Methods are provided for producing a composition comprising carbonates, wherein the methods comprise utilizing waste sources of metal oxides. An aqueous solution of divalent cations, some or all of which are derived from a waste source of metal oxides, may be contacted with CO2 and subjected to precipitation conditions to provide compositions comprising carbonates. In some embodiments, a combustion ash is the waste source of metal oxides for the aqueous solution containing divalent cations. In some embodiments, a combustion ash is used to provide a source of proton-removing agents, divalent cations, silica, metal oxides, or other desired constituents or a combination thereof.
    Type: Application
    Filed: June 17, 2009
    Publication date: January 7, 2010
    Inventors: Brent Constantz, Paulo J.M. Monteiro, Sidney Omelon, Miguel Fernandez, Kasra Farsad, Katharine Geramita, Karin Yaccato
  • Patent number: 5855721
    Abstract: A method of determining the position and condition of reinforcing steel embedded in concrete is described. The method is non-invasive. Electrodes are use to carry out the method by contacting the outer surface of the concrete. The method measures the impedance of selected regions of the concrete by measuring the voltage generated across said selected regions by a current flowing through the concrete.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: January 5, 1999
    Assignee: The Regents of the University of California
    Inventors: Paulo J. M. Monteiro, H. F. Morrison