Patents by Inventor Yonsu Kim

Yonsu Kim 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: 4223296
    Abstract: Systems for reminding the automobile driver who is leaving his car of his engine key inadvertently left behind in the engine key switch of the car before he shuts car doors in locked condition from outside the car. In one system, if the driver or his fellow passenger opens at least one of the front car doors with the engine key inadvertently left inserted in the key switch and tries to manually set a conventional door locking mechanism for the open front door in lock-ready condition, then an electrical circuit for the system is completed to energize a sound generator or an electric lamp causing it to produce a warning signal. In another system, the manual setting of the door locking mechanism in lock-ready condition is prevented under the same situation, thus reminding the driver of his left-behind engine key.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: September 16, 1980
    Inventors: Mujo Kim, Yonsu Kim