Patents Assigned to HPQ-SILICON RESOURCES INC.
  • Silica to high purity silicon production process
    Patent number: 11267714
    Abstract: An apparatus and a process for the production of high purity silicon from silica containing material such as quartz or quartzite, using a vacuum electric arc furnace, are disclosed.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: March 8, 2022
    Assignee: HPQ-SILICON RESOURCES INC.
    Inventors: Ali Shahverdi, Pierre Carabin