JR

JinKyu Ryu

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #2,968,379 of 4,157,543Top 75%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9783392 Elevator door stopping device Jung Sam Kim, Jinkoo Lee, Hansoo Shim 2017-10-10