Patents by Inventor Hang Yu Liu

Hang Yu 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: 20080145127
    Abstract: A stand-alone, book-shaped compact size ergonomic computer keyboard is introduced in the invention. All the alphabetic, number and symbol keys are placed on the back side of the keyboard that are off sight of the operator, The positions of the keys are illustrated by print of key indicia in the front side of the keyboard so the operator can locate the keys. The layout of the keys is suitable for touch typing from the back side but still keeps most of the fingering of QWERTY layout. The F1 to F12 keys, arrow keys and page control keys are placed on the upper part of the front side of keyboard to be operated by thumbs. The ‘Space’, ‘Backspace,’ ‘Return’, ‘Shift’, ‘Ctrl’, ‘Alt’, ‘Caps lock’, ‘Tab’, ‘Fn’, ‘Esc’ and ‘Delete’ keys can be allocated onto four predefined key zones on the keyboard surface in different arrays and combinations. A cursor tracking device (mouse) is also integrated in the keyboard.
    Type: Application
    Filed: October 10, 2006
    Publication date: June 19, 2008
    Inventor: Hang Yu Liu
  • Patent number: D791994
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: July 11, 2017
    Assignee: Ennoplus Technology Co., Ltd.
    Inventor: Hang-Yu Liu
  • Patent number: D816259
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: April 24, 2018
    Assignee: ENNOPLUS TECHNOLOGY CO., LTD.
    Inventor: Hang-Yu Liu