Patents by Inventor David Puerta

David Puerta 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).

  • METHOD FOR FABRICATING STEEL SHEET FOR PRESS HARDENING, AND PARTS OBTAINED BY THIS METHOD
    Publication number: 20210214816
    Abstract: The present invention provides fabrication methods for cold rolled, precoated and press hardened steel sheets, for which the chemical composition includes, with contents expressed by weight, 0.24%?C?0.38%, 0.40%?Mn?3%, 0.10%?Si?0.70%, 0.015%?Al?0.070%, 0%?Cr?2%, 0.25%?Ni?2%, 0.015%?Ti?0.10%, 0%?Nb?0.060%, 0.0005%?B?0.0040%, 0.003%?N?0.010%, 0.0001%?S?0.005%, 0.0001%?P?0.025%, it being understood that the titanium and nitrogen content satisfy: Ti/N>3.42, and that the carbon, manganese, chromium and silicon content satisfy: 2.6C+Mn/5.3+Cr/13+Si/15?1.1%, with the chemical composition optionally including one or more of the following elements: 0.05%?Mo?0.65%, 0.001%?W?0.30%, 0.0005%?Ca?0.005%, with the remainder made up of iron and inevitable impurities coming from preparation.
    Type: Application
    Filed: March 30, 2021
    Publication date: July 15, 2021
    Inventors: Sebastian Cobo, Juan David Puerta Velasquez, Martin Beauvais, Catherine Vinci
  • Precoated sheets for manufacturing press-hardened coated steel parts
    Patent number: 9957582
    Abstract: A cold-rolled sheet is provided. The cold-rolled sheet includes a steel substrate with a carbon content C0 between 0.07% and 0.5%, expressed by weight, and a metal pre-coating on at least the two principal faces of the steel substrate. The substrate has a decarburized area on the surface of each of the two principal faces. The depth p50% of the decarburized area is between 6 and 30 micrometers, and p50% is the depth at which the carbon content is equal to 50% of the content C0. The sheet does not contain a layer of iron oxide between the substrate and the metal pre-coating.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 1, 2018
    Assignee: ArcelorMittal
    Inventors: Juan David Puerta Velasquez, Jonas Staudte, Pascal Drillet
  • Process for manufacturing press-hardened coated steel parts and precoated sheets allowing these parts to be manufactured
    Patent number: 9909194
    Abstract: A cold-rolled sheet is provided. The cold-rolled sheet is annealed and pre-coated for the fabrication of press hardened parts, composed of a steel substrate for heat treatment with a carbon content C0 between 0.07% and 0.5%, expressed by weight, and a metal pre-coating on at least the two principal faces of the steel substrate. The substrate comprises a decarburized area on the surface of each of the two principal faces. The depth p50% of the decarburized area is between 6 and 30 micrometers, and p50% is the depth at which the carbon content is equal to 50% of the content C0. The sheet does not contain a layer of iron oxide between the substrate and the metal pre-coating. Processes are also provided.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: March 6, 2018
    Assignee: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO, S.L.
    Inventors: Juan David Puerta Velasquez, Jonas Staudte, Pascal Drillet
  • Method for fabricating steel sheet for press hardening, and parts obtained by this method
    Patent number: 9845518
    Abstract: The present invention provides a rolled steel sheet, for press hardening, for which the chemical composition includes, with contents expressed by weight, 0.24%?C?0.38%, 0.40%?Mn?3%, 0.10%?Si?0.70%, 0.015%?Al?0.070%, 0%?Cr?2%, 0.25%?Ni?2%, 0.015%?Ti?0.10%, 0%?Nb?0.060%, 0.0005%?B?0.0040%, 0.003%?N?0.010%, 0.0001%?S?0.005%, 0.0001%?P?0.025%, it being understood that the titanium and nitrogen content satisfy: Ti/N>3.42, and that the carbon, manganese, chromium and silicon content satisfy: 2.6 ? C + Mn 5.3 + Cr 13 + Si 15 ? 1.1 ? % , with the chemical composition optionally including one or more of the following elements: 0.05%?Mo?0.65%, 0.001%?W?0.30%, 0.0005%?Ca?0.005%, with the remainder made up of iron and inevitable impurities coming from preparation.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: December 19, 2017
    Assignee: ArcelorMittal
    Inventors: Sebastian Cobo, Juan David Puerta Velasquez, Martin Beauvais, Catherine Vinci
  • METHOD FOR FABRICATING STEEL SHEET FOR PRESS HARDENING, AND PARTS OBTAINED BY THIS METHOD
    Publication number: 20170298465
    Abstract: The present invention provides a rolled steel sheet, for press hardening, for which the chemical composition includes, with contents expressed by weight, 0.24%?C?0.38%, 0.40%?Mn?3%, 0.10%?Si?0.70%, 0.015%?Al?0.070%, 0%?Cr?2%, 0.25%?Ni?2%, 0.015%?Ti?0.10%, 0%?Nb?0.060%, 0.0005%?B?0.0040%, 0.003%?N?0.010%, 0.0001%?S?0.005%, 0.0001%?P?0.025%, it being understood that the titanium and nitrogen content satisfy: Ti/N>3.42, and that the carbon, manganese, chromium and silicon content satisfy: 2.6 ? C + Mn 5.3 + Cr 13 + Si 15 ? 1.1 ? % , with the chemical composition optionally including one or more of the following elements: 0.05%?Mo?0.65%, 0.001%?W?0.30%, 0.0005%?Ca?0.005%, with the remainder made up of iron and inevitable impurities coming from preparation.
    Type: Application
    Filed: May 31, 2017
    Publication date: October 19, 2017
    Inventors: Sebastian Cobo, Juan David Puerta Velasquez, Martin Beauvais, Catherine Vinci
  • PRECOATED SHEETS FOR MANUFACTURING PRESS-HARDENED COATED STEEL PARTS
    Publication number: 20170260599
    Abstract: A cold-rolled sheet is provided. The cold-rolled sheet includes a steel substrate with a carbon content C0 between 0.07% and 0.5%, expressed by weight, and a metal pre-coating on at least the two principal faces of the steel substrate. The substrate has a decarburized area on the surface of each of the two principal faces. The depth p50% of the decarburized area is between 6 and 30 micrometers, and p50% is the depth at which the carbon content is equal to 50% of the content C0. The sheet does not contain a layer of iron oxide between the substrate and the metal pre-coating.
    Type: Application
    Filed: May 31, 2017
    Publication date: September 14, 2017
    Inventors: Juan David PUERTA VELASQUEZ, Jonas STAUDTE, Pascal DRILLET
  • Method for Fabricating Steel Sheet for Press Hardening, and Parts Obtained by this Method
    Publication number: 20170253941
    Abstract: The present invention provides a rolled steel sheet, for press hardening, for which the chemical composition includes, with contents expressed by weight, 0.24%?C?0.38%, 0.40%?Mn?3%, 0.10%?Si?0.70%, 0.015%?Al?0.070%, 0%?Cr?2%, 0.25%?Ni?2%, 0.015%?Ti?0.10%, 0%?Nb?0.060%, 0.0005%?B?0.0040%, 0.003%?N?0.010%, 0.0001%?S?0.005%, 0.0001%?P?0.025%, it being understood that the titanium and nitrogen content satisfy: Ti/N>3.42, and that the carbon, manganese, chromium and silicon content satisfy: 2.6 ? ? C + Mn 5.3 + Cr 13 + Si 15 ? 1.1 ? % , with the chemical composition optionally including one or more of the following elements: 0.05%?Mo?0.65%, 0.001%?W?0.30%, 0.0005%?Ca?0.005%, with the remainder made up of iron and inevitable impurities coming from preparation.
    Type: Application
    Filed: July 29, 2015
    Publication date: September 7, 2017
    Applicant: Arcelormittal
    Inventors: Sebastian Cobo, Juan David Puerta Velasquez, Martin Beauvais, Catherine Vinci
  • Coloring agents and methods of use thereof
    Patent number: 9504637
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: November 29, 2016
    Assignee: Living Proof, Inc.
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • COLORING AGENTS AND METHODS OF USE THEREOF
    Publication number: 20160106648
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Application
    Filed: October 22, 2015
    Publication date: April 21, 2016
    Applicant: LIVING PROOF, INC.
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • Coloring agents and methods of use thereof
    Patent number: 9248086
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: February 2, 2016
    Assignee: Living Proof, Inc.
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • PROCESS FOR MANUFACTURING PRESS-HARDENED COATED STEEL PARTS AND PRECOATED SHEETS ALLOWING THESE PARTS TO BE MANUFACTURED
    Publication number: 20160017452
    Abstract: This invention relates to a cold-rolled sheet that is annealed and pre-coated for the fabrication of press hardened parts, composed of a steel substrate for heat treatment with a carbon content C0 between 0.07% and 0.5%, whereby this content is expressed by weight, and a metal pre-coating on at least the two principal faces of the steel substrate, characterized in that the substrate comprises a decarburized area on the surface of each of the two principal faces, whereby the depth p50% of the decarburized area is between 6 and 30 micrometers, whereby p50% is the depth at which the carbon content is equal to 50% of the content C0, and in that the sheet does not contain a layer of iron oxide between the substrate and the metal pre-coating.
    Type: Application
    Filed: September 6, 2013
    Publication date: January 21, 2016
    Applicant: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO, S.L.
    Inventors: Juan David Puerta Velasquez, Jonas Staudte, Pascal Drillet
  • COLORING AGENTS AND METHODS OF USE THEREOF
    Publication number: 20150174026
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Application
    Filed: November 26, 2014
    Publication date: June 25, 2015
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • Coloring agents and methods of use thereof
    Patent number: 8932370
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: January 13, 2015
    Assignee: Living Proof, Inc.
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • COLORING AGENTS AND METHODS OF USE THEREOF
    Publication number: 20140326269
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 6, 2014
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • Coloring agents and methods of use thereof
    Patent number: 8758451
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: June 24, 2014
    Assignee: Living Proof, Inc.
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • COLORING AGENTS AND METHODS OF USE THEREOF
    Publication number: 20140013520
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Application
    Filed: April 24, 2013
    Publication date: January 16, 2014
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • Coloring agents and methods of use thereof
    Patent number: 8444715
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: May 21, 2013
    Assignee: Living Proof, Inc.
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • COLORING AGENTS AND METHODS OF USE THEREOF
    Publication number: 20120272990
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Application
    Filed: April 6, 2012
    Publication date: November 1, 2012
    Applicant: Living Proof, Inc.
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • Coloring agents and methods of use thereof
    Patent number: 8187340
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: May 29, 2012
    Assignee: Living Proof, Inc.
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • COLORING AGENTS AND METHODS OF USE THEREOF
    Publication number: 20110154583
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 30, 2011
    Applicant: Living Proof, Inc.
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta