BG

Ben Guo

OE Otis Elevator: 1 patents #28 of 100Top 30%
Overall (2025): #442,449 of 469,880Top 95%
1
Patents 2025

Issued Patents 2025

Patent #TitleCo-InventorsDate
12421078 Elevator control system with reliability monitoring Zhenhong Li 2025-09-23