Patents by Inventor Chen K. Su

Chen K. Su 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: 6302344
    Abstract: A videotape cassette includes a housing made of plastic, a pair of video tape-holding spools, and a dust cover rotatably attached to said housing at a front portion thereof, where the dust cover is rotatable into an open position when placed in a videotape cassette recorder. The cassette housing is durable and weighs approximately 3.5 ounces or less, and the resultant videotape cassette is compatible with industry standard videocassette recorders. A method of direct mailing a videotape cassette as described above includes the steps of loading on a spool of the videotape cassette a selected content of video, shrink-wrapping the videotape cassette, affixing a mailing label and postage to the shrink-wrapped videotape cassette, and placing the labeled, shrink-wrapped videocassette in the mail for shipment.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: October 16, 2001
    Inventor: Chen K. Su
  • Patent number: D351639
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: October 18, 1994
    Inventor: Chen K. Su