Patents by Inventor Michael LIEVIN

Michael LIEVIN 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).

  • Long-workability calcium aluminate cement with hardening promoted by a temperature increase, and related use
    Patent number: 11208353
    Abstract: Disclosed is a calcium aluminate cement, including a calcium aluminate with a first crystallised mineralogical phase of calcium dialuminate CA2 including one calcium oxide CaO for two aluminium oxides Al2O3 and/or a second crystallised mineralogical phase of dicalcium alumina silicate C2AS including two calcium oxides CaO for one aluminium oxide Al2O3 and one silicon dioxide SiO2. The mass fraction of all of the first and second mineralogical phases in the calcium aluminate is greater than or equal to 80%.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: December 28, 2021
    Assignee: KERNEOS
    Inventors: Bruno Espinosa, Mark Winslow Fitzgerald, Charles Walter Alt, Philippe Thouilleux, Ratana Soth, Michaël Lievin
  • LONG-WORKABILITY CALCIUM ALUMINATE CEMENT WITH HARDENING PROMOTED BY A TEMPERATURE INCREASE, AND RELATED USE
    Publication number: 20200270176
    Abstract: Disclosed is a calcium aluminate cement, including a calcium aluminate with a first crystallised mineralogical phase of calcium dialuminate CA2 including one calcium oxide CaO for two aluminium oxides Al2O3 and/or a second crystallised mineralogical phase of dicalcium alumina silicate C2AS including two calcium oxides CaO for one aluminium oxide Al2O3 and one silicon dioxide SiO2. The mass fraction of all of the first and second mineralogical phases in the calcium aluminate is greater than or equal to 80%.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 27, 2020
    Inventors: Bruno ESPINOSA, Mark Winslow FITZGERALD, Charles Walter ALT, Philippe THOUILLEUX, Ratana SOTH, Michaël LIEVIN
  • Long-workability calcium aluminate cement with hardening promoted by a temperature increase, and related use
    Patent number: 10647613
    Abstract: Disclosed is to a calcium aluminate cement, including a calcium aluminate with a first crystallised mineralogical phase of calcium dialuminate CA2 including one calcium oxide CaO for two aluminium oxides Al2O3 and/or a second crystallised mineralogical phase of dicalcium alumina silicate C2AS including two calcium oxides CaO for one aluminium oxide Al2O3 and one silicon dioxide SiO2. The mass fraction of all of the first and second mineralogical phases in the calcium aluminate is greater than or equal to 80%.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: May 12, 2020
    Assignee: KERNEOS
    Inventors: Bruno Espinosa, Mark Winslow Fitzgerald, Charles Walter Alt, Philippe Thouilleux, Ratana Soth, Michael Lievin
  • Adjuvant for a cement or a refractory concrete composition, the uses thereof, and cement and refractory concrete compositions
    Patent number: 10526247
    Abstract: Disclosed is a cement or a refractory concrete composition, including, by weight, as compared to its total weight at least: (a) from 20% to 70% of at least one aluminum organic acid, (b) from 3% to 20% of at least one deflocculant chosen from a carboxylic acid polymer, a carboxylic acid, a salt thereof, or one of their combinations, and, (c) from 7% to 44% of at least one mineral oxide. Also disclosed is the use of such an adjuvant to improve the drying time of a refractory concrete composition or to improve the permeability of a refractory concrete composition, as well as a cement composition and to a refractory concrete composition, each including such an adjuvant.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: January 7, 2020
    Assignee: KERNEOS
    Inventors: Jean-Michel Auvray, Farida Kebli, Michael Lievin, Kamel Benyahia, Christoph Wohrmeyer
  • LONG-WORKABILITY CALCIUM ALUMINATE CEMENT WITH HARDENING PROMOTED BY A TEMPERATURE INCREASE, AND RELATED USE
    Publication number: 20180208510
    Abstract: Disclosed is to a calcium aluminate cement, including a calcium aluminate with a first crystallised mineralogical phase of calcium dialuminate CA2 including one calcium oxide CaO for two aluminium oxides Al2O3 and/or a second crystallised mineralogical phase of dicalcium alumina silicate C2AS including two calcium oxides CaO for one aluminium oxide Al2O3 and one silicon dioxide SiO2. The mass fraction of all of the first and second mineralogical phases in the calcium aluminate is greater than or equal to 80%.
    Type: Application
    Filed: July 27, 2016
    Publication date: July 26, 2018
    Inventors: Bruno ESPINOSA, Mark Winslow FITZGERALD, Charles Walter ALT, Philippe THOUILLEUX, Ratana SOTH, Michael LIEVIN
  • AN ADJUVANT FOR A CEMENT OR A REFRACTORY CONCRETE COMPOSITION, THE USES THEREOF, AND CEMENT AND REFRACTORY CONCRETE COMPOSITIONS
    Publication number: 20180141864
    Abstract: Disclosed is a cement or a refractory concrete composition, including, by weight, as compared to its total weight at least: (a) from 20% to 70% of at least one aluminum organic acid, (b) from 3% to 20% of at least one deflocculant chosen from a carboxylic acid polymer, a carboxylic acid, a salt thereof, or one of their combinations, and, (c) from 7% to 44% of at least one mineral oxide. Also disclosed is the use of such an adjuvant to improve the drying time of a refractory concrete composition or to improve the permeability of a refractory concrete composition, as well as a cement composition and to a refractory concrete composition, each including such an adjuvant.
    Type: Application
    Filed: April 22, 2016
    Publication date: May 24, 2018
    Inventors: Jean-Michel AUVRAY, Farida KEBLI, Michael LIEVIN, Kamel BENYAHIA, Christoph WOHRMEYER