Patents by Inventor Sangik Cha

Sangik Cha 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).

  • Armrest for a vehicle seat and methods of use thereof
    Patent number: 12686309
    Abstract: Armrests for vehicle seats and methods of using the armrests are provided. The armrests include a first portion coupled to the vehicle seat, and a second portion having a first member secured to the first portion, a second member pivotally coupled to the first member, and a third member pivotally coupled to the second member. The second portion is configured to selectively transition between a folded configuration and an unfolded configuration. The first member, the second member, and the third member are stacked and in combination configured to support an arm of an occupant of the vehicle seat while the armrest is in the in the folded configuration. The second member and the third member are cantilevered from the first member, extend across at least a portion of the vehicle seat, and are configurated to support a load thereon while the armrest is in the unfolded configuration.
    Type: Grant
    Filed: January 4, 2024
    Date of Patent: July 21, 2026
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Wooram Lee, Sangik Cha
  • ARMREST FOR A VEHICLE SEAT AND METHODS OF USE THEREOF
    Publication number: 20250222845
    Abstract: Armrests for vehicle seats and methods of using the armrests are provided. The armrests include a first portion coupled to the vehicle seat, and a second portion having a first member secured to the first portion, a second member pivotally coupled to the first member, and a third member pivotally coupled to the second member. The second portion is configured to selectively transition between a folded configuration and an unfolded configuration. The first member, the second member, and the third member are stacked and in combination configured to support an arm of an occupant of the vehicle seat while the armrest is in the in the folded configuration. The second member and the third member are cantilevered from the first member, extend across at least a portion of the vehicle seat, and are configurated to support a load thereon while the armrest is in the unfolded configuration.
    Type: Application
    Filed: January 4, 2024
    Publication date: July 10, 2025
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Wooram Lee, Sangik Cha