Patents by Inventor Laurent Cretteur

Laurent Cretteur 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).

  • Hot-Formed Previously Welded Steel Part with very High Mechanical Resistance and Production Method
    Publication number: 20240116141
    Abstract: A welded steel part with a very high mechanical strength is provided. The welded steel part is obtained by heating followed by hot forming, then cooling of at least one welded blank obtained by butt welding of at least one first and one second sheet. The at least one first and second sheets including, at least in part, a steel substrate and a pre-coating which includes an intermetallic alloy layer in contact with the steel substrate, topped by a metal alloy layer of aluminum or aluminum-based alloy. A method for the fabrication of a welded steel part and the fabrication of structural or safety parts for automotive vehicles are also provided.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 11, 2024
    Inventors: Laurent Cretteur, Qingdong Yin, Francis Schmit, Wolfram Ehling
  • Hot-Formed Previously Welded Steel Part with very High Mechanical Resistance and Production Method
    Publication number: 20220347797
    Abstract: A welded steel part with a very high mechanical strength is provided. The welded steel part is obtained by heating followed by hot forming, then cooling of at least one welded blank obtained by butt welding of at least one first and one second sheet. The at least one first and second sheets including, at least in part, a steel substrate and a pre-coating which includes an intermetallic alloy layer in contact with the steel substrate, topped by a metal alloy layer of aluminum or aluminum-based alloy. A method for the fabrication of a welded steel part and the fabrication of structural or safety parts for automotive vehicles are also provided.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 3, 2022
    Inventors: Laurent Cretteur, Qingdong Yin, Francis Schmit, Wolfram Ehling
  • Hot-formed previously welded steel part with very high mechanical resistance and production method
    Patent number: 11426820
    Abstract: A welded steel part with a very high mechanical strength is provided. The welded steel part is obtained by heating followed by hot forming, then cooling of at least one welded blank obtained by butt welding of at least one first and one second sheet. The at least one first and second sheets including, at least in part, a steel substrate and a pre-coating which includes an intermetallic alloy layer in contact with the steel substrate, topped by a metal alloy layer of aluminum or aluminum-based alloy. A method for the fabrication of a welded steel part and the fabrication of structural or safety parts for automotive vehicles are also provided.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: August 30, 2022
    Assignee: ArcelorMittal
    Inventors: Laurent Cretteur, Qingdong Yin, Francis Schmit, Wolfram Ehling
  • Hot-formed previously welded steel part with very high mechanical resistance and production method
    Patent number: 10919117
    Abstract: The invention relates principally to a welded steel part with a very high mechanical strength characteristics obtained by heating followed by hot forming, then cooling of at least one welded blank obtained by butt welding of at least one first and one second sheet consisting at least in part of a steel substrate and a pre-coating which is constituted by an intermetallic alloy layer in contact with the steel substrate, topped by a metal alloy layer of aluminum or aluminum-based alloy.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: February 16, 2021
    Assignee: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO, S.L.
    Inventors: Laurent Cretteur, Qingdong Yin, Francis Schmit, Wolfram Ehling
  • Hot-formed previously welded steel part with very high mechanical resistance and production method
    Patent number: 10828729
    Abstract: A welded steel part with a very high mechanical strength is provided. The welded steel part is obtained by heating followed by hot forming, then cooling of at least one welded blank obtained by butt welding of at least one first and one second sheet. The at least one first and second sheets including, at least in part, a steel substrate and a pre-coating which includes an intermetallic alloy layer in contact with the steel substrate, topped by a metal alloy layer of aluminum or aluminum-based alloy. A method for the fabrication of a welded steel part and the fabrication of structural or safety parts for automotive vehicles are also provided.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: November 10, 2020
    Assignee: ArcelorMittal
    Inventors: Laurent Cretteur, Qingdong Yin, Francis Schmit, Wolfram Ehling
  • Hot-Formed Previously Welded Steel Part with very High Mechanical Resistance and Production Method
    Publication number: 20170341187
    Abstract: A welded steel part with a very high mechanical strength is provided. The welded steel part is obtained by heating followed by hot forming, then cooling of at least one welded blank obtained by butt welding of at least one first and one second sheet. The at least one first and second sheets including, at least in part, a steel substrate and a pre-coating which includes an intermetallic alloy layer in contact with the steel substrate, topped by a metal alloy layer of aluminum or aluminum-based alloy. A method for the fabrication of a welded steel part and the fabrication of structural or safety parts for automotive vehicles are also provided.
    Type: Application
    Filed: June 29, 2017
    Publication date: November 30, 2017
    Inventors: Laurent Cretteur, Qingdong Yin, Francis Schmit, Wolfram Ehling
  • Hot-Formed Previously Welded Steel Part with very High Mechanical Resistance and Production Method
    Publication number: 20170304952
    Abstract: A welded steel part with a very high mechanical strength is provided. The welded steel part is obtained by heating followed by hot forming, then cooling of at least one welded blank obtained by butt welding of at least one first and one second sheet. The at least one first and second sheets including, at least in part, a steel substrate and a pre-coating which includes an intermetallic alloy layer in contact with the steel substrate, topped by a metal alloy layer of aluminum or aluminum-based alloy. A method for the fabrication of a welded steel part and the fabrication of structural or safety parts for automotive vehicles are also provided.
    Type: Application
    Filed: June 29, 2017
    Publication date: October 26, 2017
    Inventors: Laurent Cretteur, Qingdong Yin, Francis Schmit, Wolfram Ehling
  • HOT-FORMED PREVIOUSLY WELDED STEEL PART WITH VERY HIGH MECHANICAL RESISTANCE AND PRODUCTION METHOD
    Publication number: 20150030382
    Abstract: The invention relates principally to a welded steel part with a very high mechanical strength characteristics obtained by heating followed by hot forming, then cooling of at least one welded blank obtained by butt welding of at least one first and one second sheet consisting at least in part of a steel substrate and a pre-coating which is constituted by an intermetallic alloy layer in contact with the steel substrate, topped by a metal alloy layer of aluminum or aluminum-based alloy.
    Type: Application
    Filed: July 23, 2012
    Publication date: January 29, 2015
    Applicant: ARCELORMITTAL INVESTIGACION Y DESARROLLO, S.L.
    Inventors: Laurent Cretteur, Qingdong Yin, Francis Schmit, Wolfram Ehling