Patents by Inventor Sheldon Liu

Sheldon Liu 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).

  • Publication number: 20250088002
    Abstract: A power system includes an energy storage system having a rechargeable energy storage element and a converter connected to the rechargeable energy storage element and configured to connect to a bus so that the energy storage system is connected in parallel with a load and a main power supply system. The energy storage system may cooperate with the main power supply system to supply power to the load with each of the energy storage system and the main power supply system configured as a voltage source with a corresponding droop function. The system may include a control circuit configured to monitor a voltage of the bus and control the converter to either charge or discharge the rechargeable energy storage element based on the voltage of the bus.
    Type: Application
    Filed: September 6, 2024
    Publication date: March 13, 2025
    Applicant: Flex Ltd.
    Inventors: James P. Novak, Yi Yuan Chung, Alexei Tikhonski, James E. Nelson, Guy Raz, Igor Pavolvsky, Robert L. Myers, Pei Chiao Chung, Sung Hsiang Tsang, Guanshiun Wang, Vern Chen, Sheldon Liu, Miler Li, Deng Yu Tsai
  • Patent number: 10641353
    Abstract: A damping assembly in a vehicle is provided. The damping assembly comprises a rod; a spring disposed along a lengthwise direction of the rod; and a buffer pad including a connection end coupled to the rod and an external end opposing the connection end and including a buffer surface. The spring is coupled with the rod and configured to be retracted and extended with the rod at the lengthwise direction.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: May 5, 2020
    Assignee: Ford Global Technologies LLC
    Inventors: Gerd Mueller, Sheldon Liu, Wei Xu
  • Publication number: 20180080517
    Abstract: A damping assembly in a vehicle is provided. The damping assembly comprises a rod; a spring disposed along a lengthwise direction of the rod; and a buffer pad including a connection end coupled to the rod and an external end opposing the connection end and including a buffer surface. The spring is coupled with the rod and configured to be retracted and extended with the rod at the lengthwise direction.
    Type: Application
    Filed: September 13, 2017
    Publication date: March 22, 2018
    Inventors: Gerd Mueller, Sheldon Liu, Wei Xu