Patents by Inventor Robert U. Liu

Robert U. 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).

  • Keyboard accessory for electronic device
    Patent number: 12411558
    Abstract: A modular electronic device system that can include a computing device in electronic communication with an input device. Various types of sensor contained in either or both of the computing device and input device are used to determine orientation and hinge angle between the computing device and input device. Input settings can be changed according to the data from the various sensors. The input device can also include an elongated tail that is configured to attach to the computing device. The elongated tail can allow multiple physical configurations for ease of use.
    Type: Grant
    Filed: February 1, 2024
    Date of Patent: September 9, 2025
    Assignee: APPLE INC.
    Inventors: Santhana K. Balaji, Jaime G. Chavez Ruiz Garza, Blake R. Marshall, Robert U. Liu, Chen Zheng, Ramon Villar Ramirez, Jonathan M. Beard, Adam S. Howell, Taylor H. Gilbert, Alexander L. Jackson, Qigen Ji
  • KEYBOARD ACCESSORY FOR ELECTRONIC DEVICE
    Publication number: 20240385697
    Abstract: A modular electronic device system that can include a computing device in electronic communication with an input device. Various types of sensor contained in either or both of the computing device and input device are used to determine orientation and hinge angle between the computing device and input device. Input settings can be changed according to the data from the various sensors. The input device can also include an elongated tail that is configured to attach to the computing device. The elongated tail can allow multiple physical configurations for ease of use.
    Type: Application
    Filed: February 1, 2024
    Publication date: November 21, 2024
    Inventors: Santhana K. Balaji, Jaime G. Chavez Ruiz Garza, Blake R. Marshall, Robert U. Liu, Chen Zheng, Ramon Villar Ramirez, Jonathan M. Beard, Adam S. Howell, Taylor H. Gilbert, Alexander L. Jackson, Qigen Ji
  • Stylus with touch input and compressive force sensors
    Patent number: 11360616
    Abstract: A stylus or other tactile-based input device can receive different types of tactile input from a user. The tactile input sensing functions can be performed by a touch input sensor, such as a capacitive sensing device, and a compressive force sensor, such as a capacitive gap sensor. A touch input sensor can be integrated into an input device in a low profile form and overlap the compressive force sensor so that both touch input and compressive force input can be detected in the same regions of the stylus. Both types of tactile input can be received at the user's natural grip location.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: June 14, 2022
    Assignee: APPLE INC.
    Inventors: Robert M. Proie, Robert U. Liu, Wing Kong Low, Nan Wang