YZ

Yong Zhao

OE Otis Elevator: 1 patents #64 of 199Top 35%
Overall (2024): #204,225 of 561,600Top 40%
1
Patents 2024

Issued Patents 2024

Patent #TitleCo-InventorsDate
11858780 Governor assembly, elevator safety device and elevator system Wei-Chung Wang, Decheng Meng 2024-01-02