Patents by Inventor Doon CHEN

Doon CHEN 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).

  • Tamper detection
    Patent number: 12542050
    Abstract: A device includes a housing, a tamper switch supported at the housing, and an actuation arm supported at the housing. The actuation arm includes an actuation column. The actuation arm is movable between a tamper switch engaged position and a tamper switch released position. In the tamper switch engaged position, the actuation column contacts the tamper switch and the actuation arm is at a first angle relative to the tamper switch. In the tamper switch released position, the actuation column is spaced apart from the tamper switch and the actuation arm is at a second angle relative to the tamper switch. The second angle is different than the first angle.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: February 3, 2026
    Assignee: RESIDEO LLC
    Inventors: Doon Chen, Yongjun Chen, Juanchun Peng
  • TAMPER DETECTION
    Publication number: 20240371255
    Abstract: A device includes a housing, a tamper switch supported at the housing, and an actuation arm supported at the housing. The actuation arm includes an actuation column. The actuation arm is movable between a tamper switch engaged position and a tamper switch released position. In the tamper switch engaged position, the actuation column contacts the tamper switch and the actuation arm is at a first angle relative to the tamper switch. In the tamper switch released position, the actuation column is spaced apart from the tamper switch and the actuation arm is at a second angle relative to the tamper switch. The second angle is different than the first angle.
    Type: Application
    Filed: December 9, 2020
    Publication date: November 7, 2024
    Inventors: Doon CHEN, Yongjun CHEN, Juanchun PENG