BY

Byeongsam Yoo

OE Otis Elevator: 1 patents #100 of 260Top 40%
Overall (2019): #520,862 of 560,194Top 95%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10407278 Safety device for elevators Lifeng Zhang, James M. Draper, Min Wang 2019-09-10