Patents by Inventor Cheng Ji LIAN

Cheng Ji LIAN 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).

  • ELEVATOR
    Publication number: 20200391978
    Abstract: An elevator of the present invention includes a guide member spaced apart from a structure and formed in a vertical direction with respect to the ground, a first elevating member coupled to the guide member to be moveable in a longitudinal direction of the guide member, a second elevating member coupled to the guide member to be moveable in the longitudinal direction of the guide member, detachably coupled to a lower side of the first elevating member, and lifted and lowered together with the first elevating member, and at least one connecting unit which connects the first elevating member and the second elevating member.
    Type: Application
    Filed: November 21, 2017
    Publication date: December 17, 2020
    Inventors: Kyung Nam YOU, Jun JUNG, Hong Ku JEONG, Seung Woo KIM, Tae Yun KIM, Cheng Ji LIAN, Kwang Hyun LEE