HH

Haofeng Hou

OE Otis Elevator: 1 patents #28 of 100Top 30%
Overall (2025): #375,353 of 469,880Top 80%
1
Patents 2025

Issued Patents 2025

Patent #TitleCo-InventorsDate
12234122 Authorization management and authorization request of elevator service request Yang Yang, Yu Zhang, Kai Li, Siqi Ma 2025-02-25