Patents by Inventor Jean-Philippe LAVOIE

Jean-Philippe LAVOIE 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).

  • Laser welding method
    Patent number: 11389894
    Abstract: A method for laser keyhole welding of metal alloys is disclosed. The method independently adjusts power in a focused center beam and power in a concentric focused annular beam. At the termination of a weld, the power in the center beam is initially ramped up and then ramped down, while the power in the annular beam is ramped down. Increasing the power in the center beam enables a controlled and prolonged contraction of the keyhole and melt pool, thereby preventing undesirable cracking.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: July 19, 2022
    Assignee: Coherent, Inc.
    Inventors: Ryan Brescoe, Jean-Philippe Lavoie
  • LASER WELDING METHOD
    Publication number: 20200254562
    Abstract: A method for laser keyhole welding of metal alloys is disclosed. The method independently adjusts power in a focused center beam and power in a concentric focused annular beam. At the termination of a weld, the power in the center beam is initially ramped up and then ramped down, while the power in the annular beam is ramped down. Increasing the power in the center beam enables a controlled and prolonged contraction of the keyhole and melt pool, thereby preventing undesirable cracking.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 13, 2020
    Applicant: Coherent, Inc.
    Inventors: Ryan BRESCOE, Jean-Philippe LAVOIE