SZ

Sisi Zheng

OE Otis Elevator: 4 patents #4 of 100Top 4%
Overall (2025): #29,413 of 469,880Top 7%
4
Patents 2025

Issued Patents 2025

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D1071767 Operation panel for the disabled Zhe Li 2025-04-22
D1069626 Fire alarm device Zhe Li 2025-04-08
D1066092 Display Zhe Li 2025-03-11
D1060095 Operation panel for the disabled Zhe Li 2025-02-04