Patents by Inventor Kun Hwi Choi

Kun Hwi Choi 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).

  • Electronic key device capable of wirelessly controlling lock system and transmitting control authentication of lock system, system therefor, and method therefor
    Patent number: 9718440
    Abstract: According to an electronic key device capable of wirelessly controlling a lock system and transmitting control authentication of a lock system, a system therefor, and a method therefor, which are presented in the present invention, an operation of the lock system is controlled by communicating with the lock system, and an electronic key can be simply transmitted and rented, at a long distance through a communication network, by communicating with another electronic key device and granting operation control authority of the lock system to the other electronic key device.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: August 1, 2017
    Inventors: Gwang Woo Kim, Kun Hwi Choi, Cheung Hui Choi
  • ELECTRONIC KEY DEVICE CAPABLE OF WIRELESSLY CONTROLLING LOCK SYSTEM AND TRANSMITTING CONTROL AUTHENTICATION OF LOCK SYSTEM, SYSTEM THEREFOR, AND METHOD THEREFOR
    Publication number: 20160368455
    Abstract: According to an electronic key device capable of wirelessly controlling a lock system and transmitting control authentication of a lock system, a system therefor, and a method therefor, which are presented in the present invention, an operation of the lock system is controlled by communicating with the lock system, and an electronic key can be simply transmitted and rented, at a long distance through a communication network, by communicating with another electronic key device and granting operation control authority of the lock system to the other electronic key device.
    Type: Application
    Filed: February 3, 2015
    Publication date: December 22, 2016
    Inventors: Gwang Woo Kim, Kun Hwi Choi, Cheung Hui Choi