JinKyu Ryu — 1 Patent in 2017

OEOtis Elevator: 1 patents #50 of 167Top 30%

Overall (2017): #374,811 of 506,227Top 75%

1 Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
9783392	Elevator door stopping device	Jung Sam Kim, Jinkoo Lee, Hansoo Shim	2017-10-10