Patents by Inventor HAD-WEN CHEN

HAD-WEN CHEN 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).

  • Pen-Type Optical Input Device
    Publication number: 20080198133
    Abstract: The pen-type optical input device of the present invention is utilized for controlling the cursor of operating system of electronic device. The pen-type optical input device comprises a main body, a circuit board and an opaque ball. Therefore, the operational efficiency is improved and the input device is utilized whether the axis plane is transparent or not due to the ball location.
    Type: Application
    Filed: February 15, 2007
    Publication date: August 21, 2008
    Inventor: Had-Wen Chen
  • Pen-Type Input Device with Remote Control
    Publication number: 20080174571
    Abstract: The pen-type input device with remote control is to perform the identified configuration wirelessly, and comprise a main body, a cursor controller, a position sensor, an identified unit, an emitter, and a controller including a circuit board and a main processing unit, and the units are installed in the main body which is a hollow tube. Besides, the input device further includes a rechargeable battery.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 24, 2008
    Inventor: HAD-WEN CHEN