Patents by Inventor Olivier Watt

Olivier Watt 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).

  • Process of preparing a cemented paste backfill material
    Patent number: 12286377
    Abstract: A process of preparing a cemented paste backfill material, the material including ground mine tailings, a hydraulic binder and water, wherein the solids content of the backfill material is 70-82 wt.-%, the process including a) providing a dry premix, the premix including the hydraulic binder, a superplasticizer and optionally a defoaming agent, b) mixing the dry premix with the ground mine tailings and water.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: April 29, 2025
    Assignee: HOLCIM TECHNOLOGY LTD
    Inventors: Eric Brouard, Olivier Watt, Delphine Thomas, Antoine Creyx
  • PROCESS OF PREPARING A CEMENTED PASTE BACKFILL MATERIAL
    Publication number: 20220259104
    Abstract: A process of preparing a cemented paste backfill material, the material including ground mine tailings, a hydraulic binder and water, wherein the solids content of the backfill material is 70-82 wt.-%, the process including a) providing a dry premix, the premix including the hydraulic binder, a superplasticizer and optionally a defoaming agent, b) mixing the dry premix with the ground mine tailings and water.
    Type: Application
    Filed: June 10, 2020
    Publication date: August 18, 2022
    Inventors: Eric BROUARD, Olivier WATT, Delphine THOMAS, Antoine CREYX
  • USE OF AN ACIDIC SALT OF IRON (III) AS ADDITIVE FOR CEMENT, MORTAR OR CONCRETE
    Publication number: 20220127195
    Abstract: A method includes adding an acidic salt of Iron (III) as additive to cement, mortar or concrete.
    Type: Application
    Filed: February 13, 2020
    Publication date: April 28, 2022
    Inventors: Olivier WATT, Delphine THOMAS
  • TRACK BED AND METHOD OF STABILIZING A TRACK BED
    Publication number: 20200115856
    Abstract: A track bed for a railroad track, includes track ballast made from particulate matter and a multitude of railroad ties supported on the track ballast, wherein at least one region of the track ballast is stabilized by a bonding agent that bonds together particles of the particulate matter, wherein the bonding agent is based on a hydraulic binder, in particular cement, and the bonding agent leaves free voids between the bonded particles so that the track ballast has a water draining capability in the at least one stabilized region.
    Type: Application
    Filed: April 5, 2018
    Publication date: April 16, 2020
    Inventors: Emmanuel GUILLON, Anthony PEUCHLESTRADE, Arnaud JONNEKIN, Olivier WATT
  • Process to inert non-swelling clays
    Patent number: 10011531
    Abstract: A process to inert non-swelling clays in at least one mineral component intended for the preparation of a hydraulic composition, including the addition, to the hydraulic composition, to the mineral component or to one of the other constituents of the hydraulic composition, of an organic molecule having a cationic charge density strictly less than 0.5 meq/g and including at least two atoms each being capable of forming at least one hydrogen bond.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: July 3, 2018
    Assignee: LAFARGE
    Inventors: Emmanuel Villard, Olivier Watt, Horacio Naranjo, David Rinaldi, Alain Jacquet
  • Curing process for concrete
    Patent number: 9255037
    Abstract: A curing process of a concrete element including at least partially coating the element with a curing composition, the composition including a solvent and a thickening agent, the thickening agent being insoluble at a pH greater than 12 and being soluble in the solvent for a solubility range of pH, the upper limit of the solubility range being less than 11.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: February 9, 2016
    Assignee: LAFARGE
    Inventors: Chris Christidis, Fabien Perez, Olivier Watt
  • Water-reducing agent for hydraulic binders
    Patent number: 8962713
    Abstract: A method includes using copolymers including at least polyoxyalkylenated monomer units and at least phosphorus-comprising monomer units as water-reducing agent in hydraulic binders.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: February 24, 2015
    Assignee: Continental Building Products LLC
    Inventors: Jean-Michel Faure, Olivier Watt, David Rinaldi, Hakimi Yahiaoui
  • Impurity inerting composition
    Patent number: 8834626
    Abstract: A method for inerting clays in sands which are intended for the preparation of hydraulic compositions, the method including a step of adding to the hydraulic composition, or to one of the constituents thereof, a composition which may include at least 50% by weight of a cationic polymer which has a density of cationic charges which is greater than 0.5 meq/g and an intrinsic viscosity which is less than 1 dl/g as an active substance. The hydraulic composition may be a concrete or a mortar.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: September 16, 2014
    Assignee: Lafarge
    Inventors: Alain Jacquet, Emmanuel Villard, Olivier Watt
  • CURING PROCESS FOR CONCRETE
    Publication number: 20140079889
    Abstract: A curing process of a concrete element including at least partially coating the element with a curing composition, the composition including a solvent and a thickening agent, the thickening agent being insoluble at a pH greater than 12 and being soluble in the solvent for a solubility range of pH, the upper limit of the solubility range being less than 11.
    Type: Application
    Filed: May 10, 2012
    Publication date: March 20, 2014
    Applicant: LAFARGE
    Inventors: Chris Christidis, Fabien Perez, Olivier Watt
  • Method for preparing a hydraulic composition
    Patent number: 8425680
    Abstract: In one embodiment, the present invention includes a method for preparing a hydraulic composition including sand in which clay is present, the method including adding to the sand and clay a cationic polymer having a density of cationic charges which is greater than 0.5 meq/g and an intrinsic viscosity which is less than 1 dl/g, said cationic polymer being present in an amount of from 2-20% by weight based on the amount of clay present, said clay present in an amount of from 0.5-5% by weight of the sand present, and water.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: April 23, 2013
    Assignee: LaFarge
    Inventors: Alain Jacquet, Emmanuel Villard, Olivier Watt
  • PROCESS TO INERT NON-SWELLING CLAYS
    Publication number: 20130035417
    Abstract: A process to inert non-swelling clays in at least one mineral component intended for the preparation of a hydraulic composition, including the addition, to the hydraulic composition, to the mineral component or to one of the other constituents of the hydraulic composition, of an organic molecule having a cationic charge density strictly less than 0.5 meq/g and including at least two atoms each being capable of forming at least one hydrogen bond.
    Type: Application
    Filed: March 1, 2011
    Publication date: February 7, 2013
    Applicant: LAFARGE
    Inventors: Emmanuel Villard, Olivier Watt, Horacio Naranjo, David Rinaldi, Alain Jacquet
  • METHOD FOR PREPARING A HYDRAULIC COMPOSITION
    Publication number: 20120316267
    Abstract: In one embodiment, the present invention includes a method for preparing a hydraulic composition including sand in which clay is present, the method including adding to the sand and clay a cationic polymer having a density of cationic charges which is greater than 0.5 meq/g and an intrinsic viscosity which is less than 1 dl/g, said cationic polymer being present in an amount of from 2-20% by weight based on the amount of clay present, said clay present in an amount of from 0.5-5% by weight of the sand present, and water.
    Type: Application
    Filed: August 2, 2012
    Publication date: December 13, 2012
    Applicant: Lafarge
    Inventors: Alain Jacquet, Emmanuel Villard, Olivier Watt
  • WATER-REDUCING AGENT FOR HYDRAULIC BINDERS
    Publication number: 20120016059
    Abstract: A method includes using copolymers including at least polyoxyalkylenated monomer units and at least phosphorus-comprising monomer units as water-reducing agent in hydraulic binders.
    Type: Application
    Filed: March 23, 2010
    Publication date: January 19, 2012
    Applicant: LAFARGE GYPSUM INTERNATIONAL
    Inventors: Jean-Michel Faure, Olivier Watt, David Rinaldi, Hakimi Yahiaoui
  • Adjuvant for hydraulic compositions
    Patent number: 7935748
    Abstract: The invention provides an admixture for a hydraulic binder composition comprising at least one cationic polymer and at least one anionic polymer, at least one of these polymers having a comb type of structure, wherein the mass ratio of the anionic polymer/cationic polymer is from 99.9/0.1 to 60/40. It also provides a process for its preparation as well as its use as a plasticizer.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: May 3, 2011
    Assignee: Lafarge SA
    Inventors: Sébastien Georges, Emmanuel Villard, Olivier Watt, Serge Ghilardi
  • Adjuvant for Hydraulic Compositions
    Publication number: 20080300344
    Abstract: The invention provides an admixture for a hydraulic binder composition comprising at least one cationic polymer and at least one anionic polymer, at least one of these polymers having a comb type of structure, wherein the mass ratio of the anionic polymer/cationic polymer is from 99.9/0.1 to 60/40. It also provides a process for its preparation as well as its use as a plasticizer.
    Type: Application
    Filed: February 2, 2007
    Publication date: December 4, 2008
    Inventors: Sebastien Georges, Emmanuel Villard, Olivier Watt, Serge Ghilardi
  • Impurity Inerting Composition
    Publication number: 20080060556
    Abstract: The invention concerns a composition useful for inerting clays in hydraulic compositions, comprising at least 50 wt. % of a cationic polymer having a cationic charge density more than 0.5 meq/g and an intrinsic viscosity less than 1 dl/g, as active substance.
    Type: Application
    Filed: September 21, 2005
    Publication date: March 13, 2008
    Inventors: Alain Jacquet, Emmanuel Villard, Olivier Watt