Patents by Inventor Yau Wang

Yau Wang 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: 20260077831
    Abstract: A vehicle may include a pedal assembly, a motor assembly, and a drive unit that may be used to allow selective usage of one or both of the pedal assembly and the motor assembly to convey power to a driven wheel of the vehicle. The drive unit can include a gearbox that may enclose components which form at least part of a first power path between the pedal assembly and the driven wheel and a second power path between the motor assembly and the driven wheel. The first and second power paths can converge at a component within the gearbox. One-way bearings at points in the first and second power paths prior to the convergence of the power paths can inhibit or prevent the pedal assembly from being affected by operation of the motor assembly, and vice versa.
    Type: Application
    Filed: September 26, 2025
    Publication date: March 19, 2026
    Inventors: Robert Chen, Yau Wang, Louis Lu
  • Patent number: 12428102
    Abstract: A vehicle may include a pedal assembly, a motor assembly, and a drive unit that may be used to allow selective usage of one or both of the pedal assembly and the motor assembly to convey power to a driven wheel of the vehicle. The drive unit can include a gearbox that may enclose components which form at least part of a first power path between the pedal assembly and the driven wheel and a second power path between the motor assembly and the driven wheel. The first and second power paths can converge at a component within the gearbox. One-way bearings at points in the first and second power paths prior to the convergence of the power paths can inhibit or prevent the pedal assembly from being affected by operation of the motor assembly, and vice versa.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: September 30, 2025
    Assignee: Razor USA LLC
    Inventors: Robert Chen, Yau Wang, Louis Lu
  • Publication number: 20240351664
    Abstract: Various motorized mid-drive units are disclosed. The motorized mid-drive unit can be configured to drive a vehicle, such as a bicycle, having one or more cranks and a driven wheel. The motorized mid-drive unit can include an electric motor, a reducer, a gearbox (which can include one or more gears), a first one-way bearing, and a second one-way bearing. The first one-way bearing can enable power from the electric motor to be delivered to the driven wheel. The second one-way bearing can enable power from the one or more cranks to be delivered to the driven wheel. The reducer can reduce a rotational speed output from the electric motor which may be delivered to the driven wheel. The motorized mid-drive unit can propel the vehicle with the one or more cranks, with the electric motor, and/or simultaneously with the one or more cranks and the electric motor.
    Type: Application
    Filed: April 17, 2024
    Publication date: October 24, 2024
    Inventors: Robert Chen, Louis Lu, Yau Wang
  • Publication number: 20230133794
    Abstract: Various hub motor arrangements, systems, and methods are disclosed. The hub motor arrangement may include a transmission assembly to provide increased torque. The transmission assembly may include a motor gear, a planetary gear, an idler gear, and a ring gear. The idler gear may be positioned farther away from an axis of rotation of the hub motor arrangement compared to the planetary gear. The motor gear may drive the planetary gear, the planetary gear may drive the idler gear, and idler gear may drive the ring gear. The rotation of the ring gear may rotate a housing of the hub motor arrangement to propel a vehicle incorporating the hub motor arrangement.
    Type: Application
    Filed: June 16, 2022
    Publication date: May 4, 2023
    Inventors: Robert Chen, Yau Wang, Louis Lu, Ian Desberg, Robert Hadley
  • Publication number: 20220371686
    Abstract: A vehicle may include a pedal assembly, a motor assembly, and a drive unit that may be used to allow selective usage of one or both of the pedal assembly and the motor assembly to convey power to a driven wheel of the vehicle. The drive unit can include a gearbox that may enclose components which form at least part of a first power path between the pedal assembly and the driven wheel and a second power path between the motor assembly and the driven wheel. The first and second power paths can converge at a component within the gearbox. One-way bearings at points in the first and second power paths prior to the convergence of the power paths can inhibit or prevent the pedal assembly from being affected by operation of the motor assembly, and vice versa.
    Type: Application
    Filed: May 19, 2022
    Publication date: November 24, 2022
    Inventors: Robert Chen, Yau Wang, Louis Lu