Patents by Inventor Chiang Ching-Chung

Chiang Ching-Chung 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).

  • Microphone with telescopic sound pickup means
    Patent number: 5742697
    Abstract: A microphone having a telescopic sound pickup means includes a handle fitted with an adjusting knob provided with an internal spiral slide groove. By turning the adjusting knob, a pin may be brought by the spiral slide groove to slide upwardly and downwardly along a vertical slot formed in one side of the handle. The pickup head is therefore brought to perform telescopic actions by the displacement of the pin.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: April 21, 1998
    Assignee: PAO Sung Industrial Co., Ltd.
    Inventor: Chiang Ching-Chung