Patents by Inventor Kevin H. K. Tso

Kevin H. K. Tso 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).

  • Patent number: 6157323
    Abstract: A multiple input key for inputting characters and the key has a body with a top and bottom surface, with the bottom surface being proximal to a printed circuit board and the top surface being distal from the printed circuit board. The key is pivotable about a pivot. A pivot extends from the bottom surface of the body and has an electrical contact pad such that when the contact pad contacts one of the leads on the printed circuit board a circuit is closed. A skirt surrounds the periphery of the body of the key and the skirt operatively supports the body of the key on the printed circuit board.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: December 5, 2000
    Inventors: Kevin H. K. Tso, Kenneth K. Li, Daniel S. Kwoh