Patents by Inventor Ka Hung Au

Ka Hung Au 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).

  • Hand-held devices with touch sensing on/off operation
    Patent number: 7718906
    Abstract: A hand-held battery powered device senses when it is picked up, and then automatically turns on. When the device is released or set back down, it automatically turns off. Touch or contact sensors sense the touch of a human hand, causing a circuit in the device to switch on a light source, such as an LED, or a motor, or other load. The device is advantageously designed so that when grasped or picked up, the fingers of the user's hand lay over touch sensors. Various types of touch sensors may be used. The touch sensors operate electrically, and without any movement, or moving parts.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: May 18, 2010
    Assignee: Eric Beare Associates Ltd.
    Inventors: Ka Hung Au, Wing Kit Lui
  • Hand-held devices with touch sensing on/off operation
    Publication number: 20060256087
    Abstract: A hand-held battery powered device senses when it is picked up, and then automatically turns on. When the device is released or set back down, it automatically turns off. Touch or contact sensors sense the touch of a human hand, causing a circuit in the device to switch on a light source, such as an LED, or a motor, or other load. The device is advantageously designed so that when grasped or picked up, the fingers of the user's hand lay over touch sensors. Various types of touch sensors may be used. The touch sensors operate electrically, and without any movement, or moving parts.
    Type: Application
    Filed: October 18, 2005
    Publication date: November 16, 2006
    Inventors: Ka Hung Au, Wing Kit Lui
  • Dual USB vehicle power adapter
    Patent number: D633046
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: February 22, 2011
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • Micro universal serial bus adapter
    Patent number: D641023
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: July 5, 2011
    Assignee: Ever Win International Corporation
    Inventors: Henry Chen, Ka Hung Au
  • Cube travel charger
    Patent number: D653208
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: January 31, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • Cube travel charger
    Patent number: D653614
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: February 7, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • Cube travel charger
    Patent number: D653615
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: February 7, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • Cube travel charger
    Patent number: D654020
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: February 14, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • USB vehicle power adapter
    Patent number: D654872
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: February 28, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • USB vehicle power adapter
    Patent number: D654873
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: February 28, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • USB vehicle power adapter
    Patent number: D654874
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: February 28, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • Vehicle power adapter
    Patent number: D654875
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: February 28, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • Cube travel charger
    Patent number: D655243
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: March 6, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • Cube travel charger
    Patent number: D655244
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: March 6, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • USB vehicle power adapter
    Patent number: D655676
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: March 13, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • Vehicle power adapter
    Patent number: D656465
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: March 27, 2012
    Assignee: Ever Win International Corporation
    Inventor: Ka Hung Au
  • Micro universal serial bus adapter
    Patent number: D672780
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: December 18, 2012
    Assignee: Ever Win International Corporation
    Inventors: Henry Chen, Ka Hung Au
  • Wall charger
    Patent number: D875040
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: February 11, 2020
    Assignee: Ever Win International Corporation
    Inventors: Robert Stern, Ka Hung Au