Patents by Inventor Leung Kwok Ching

Leung Kwok Ching 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).

  • Handheld electronic communication device transitionable between compact and expanded configurations
    Patent number: 8154520
    Abstract: A handheld electronic communication device is disclosed that is transitionable between at least a compact configuration and expanded configuration. The handheld electronic communication device includes a display panel pivotally interconnected to a keyboard panel. The display panel can be overlaid on, and in substantial registration with, the keyboard panel in a compact configuration. Furthermore, the display panel can be offset above the keyboard panel in an expanded configuration. A pivot connection can be configured to couple and maintain the keyboard and display panels in substantial parallel orientation to each other in the compact and expanded configurations. The pivot connection includes an axis of rotation and is located in an upper corner of the handheld electronic communication device in the compact configuration. Additionally, a trackball navigation tool assembly is located at the upper corner of the handheld electronic communication device where the axis of rotation is located.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: April 10, 2012
    Assignee: Research In Motion Limited
    Inventor: Leung Kwok Ching
  • Handheld Electronic Communication Device Transitionable Between Compact And Expanded Configurations
    Publication number: 20090244011
    Abstract: A handheld electronic communication device is disclosed that is transitionable between at least a compact configuration and expanded configuration. The handheld electronic communication device includes a display panel pivotally interconnected to a keyboard panel. The display panel can be overlaid on, and in substantial registration with, the keyboard panel in a compact configuration. Furthermore, the display panel can be offset above the keyboard panel in an expanded configuration. A pivot connection can be configured to couple and maintain the keyboard and display panels in substantial parallel orientation to each other in the compact and expanded configurations. The pivot connection includes an axis of rotation and is located in an upper corner of the handheld electronic communication device in the compact configuration. Additionally, a trackball navigation tool assembly is located at the upper corner of the handheld electronic communication device where the axis of rotation is located.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Inventor: Leung Kwok Ching