Patents by Inventor Antonio Cho

Antonio Cho 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: 4809013
    Abstract: The invention relates to a television contest-entering device for the tamperproof recording and storing of entries in television contests. Such a handy device can be mailed, for example, to all interested televiewers before the progam is broadcast, thus permitting these viewers to participate outside the television studio in a contest where the answers to questions asked in a quiz game, for example, are to be recorded with exact indication of the time at which they are recorded, and preserved in a tamperproof manner, the device then being returned by the contestant to the television station for judgment of the entries.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: February 28, 1989
    Assignee: Cope Praezisionsapparate AG
    Inventors: Chiliang Cho, Antonio Cho, Viktor Cho