BL

Bichun Li

OE Otis Elevator: 2 patents #21 of 199Top 15%
Overall (2024): #182,169 of 561,600Top 35%
2
Patents 2024

Issued Patents 2024

Patent #TitleCo-InventorsDate
12180034 Communication network switching system and method for elevator system, and elevator system Qiang Chen, Shenhong Wang, Yu Zhang 2024-12-31
12139371 Connecting mechanism, elevator shaft module and elevator system Qirui Wang, Shenhong Wang 2024-11-12