Patents by Inventor Beom Su KI

Beom Su KI 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).

  • ETCHING DEVICE
    Publication number: 20220108897
    Abstract: The present invention relates to an etching device comprising: an etching chamber; an opening/closing unit for opening/closing the etching chamber; and a locking unit for selectively locking the opening/closing unit.
    Type: Application
    Filed: April 22, 2020
    Publication date: April 7, 2022
    Applicant: ZEUS CO., LTD.
    Inventors: Seung Hoon LEE, Sung Won MO, Joo Hyoung LEE, Beom Su KI, Seong Hwan PARK, Hyun Dong CHO