FZ

Fengkun Zhu

OE Otis Elevator: 1 patents #28 of 100Top 30%
Overall (2025): #389,694 of 469,880Top 85%
1
Patents 2025

Issued Patents 2025

Patent #TitleCo-InventorsDate
12214994 Brake disc releasing device, turning device, elevator rescue kit and method Hongliang Wu, James L. Hubbard 2025-02-04